From the category archives:

Tropical Fish

Triportheus trifurcatus

Family: Characidae
Distribution: Triportheus trifurcatus is a benthopelagic freshwater species found in the Tocantins-Araguaia River basin, Brazil.
PH: 6.0 – 7.5
Temperature: 24°C – 27C (75 – 81F)
Hardness: 1 – 18

Description: Triportheus trifurcatus can reach a maximum length of about 17 cm.  This deep-bodied species has a silver-yellowish colouration and 5 – 6 longitudinal [...]

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Triportheus signatus

Family: Characidae
Distribution: Triportheus signatus is a benthopelagic freshwater species found in South America’s Parnaiba River basin and in some of Brazil’s north eastern coastal drainages.
PH: 6.0 – 7.5
Temperature: 24°C – 27C (75 – 81F)
Hardness: 1 – 18

Description: Triportheus signatus can reach a maximum length of about 16 cm.  This deep-bodied species [...]

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Triportheus rotundatus (Catalina Tetra)

Family: Characidae
Distribution: Triportheus rotundatus, commonly known as the Catalina Tetra, is a benthopelagic freshwater species found in South America’s Amazon River basin and in coastal drainages of the Guianas.  It can generally be found in rivers and creeks that have very little current.
PH: 6.0 – 7.5
Temperature: 24°C – 27C (75 – 81F)
Hardness: 1 [...]

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Triportheus pictus

Family: Characidae
Distribution: Triportheus pictus is a benthopelagic freshwater species that is found in South America’s Amazon River basin, in Brazil.  It has been collected from the Rio Hyutahy, Rio Jutai and the Solimoes tributary.
PH: 6.0 – 7.0
Temperature: 22°C – 28C (72 – 82F)
Hardness: 0 – 15

Description: Triportheus pictus can reach a [...]

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Triportheus paranensis (Tetra)

Family: Characidae
Distribution: Triportheus paranensis, sometimes known as Tetra, is a benthopelagic freshwater species that is found in South America’s La Plata River, throughout the Parana River, and in the Cuenca del Bermejo in Salta.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus paranensis can reach a [...]

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Triportheus pantanensis

Family: Characidae
Distribution: Triportheus pantanensis is a benthopelagic freshwater species that is found in South America’s Rio Paraguay and the lower Rio Parana basin.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus pantanensis can reach a maximum length of about 16 cm.  This deep-bodied species has a [...]

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Triportheus orinocensis

Family: Characidae
Distribution: Triportheus orinocensis is a benthopelagic freshwater species that is found in South America’s Rio Orinoco basin, in Venezuela.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus orinocensis can reach a maximum length of about 14 cm.  This deep-bodied species has a yellow-brownish colour and [...]

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Triportheus nematurus

Family: Characidae
Distribution: Triportheus nematurus is a benthopelagic freshwater species that is found in South America’s Parana – Paraguay River basin.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus nematurus can reach a maximum length of 18.3 cm.  This deep-bodied species has a silvery-yellow colouration and a [...]

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Triportheus magdalenae

Family: Characidae
Distribution: Triportheus magdalenae is a benthopelagic freshwater species that is found in South America’s Magdalena River basin, in Columbia.  It is the only member of this genus known from this region.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus magdalenae can reach a maximum length [...]

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Triportheus guentheri

Family: Characidae
Distribution: Triportheus guentheri is a benthopelagic freshwater species that is distributed in the Sao Francisco River basin, South America.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus guentheri can reach a maximum length of 14 cm.  It has often been confused with Triportheus brachipomus, but [...]

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Triportheus elongatus (Elongate Hatchetfish)

Family: Characidae
Distribution: Triportheus elongatus, commonly known as Elongate Hatchetfish, is a benthopelagic freshwater species that is distributed in the Amazon, Orinoco and Essequibo River basins, as well as parts of Trinidad.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus elongatus can reach a maximum length of [...]

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Triportheus curtus

Family: Characidae
Distribution: Triportheus curtus is a benthopelagic freshwater species that is distributed in South America’s Amazon River basin.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus curtus is a deep-bodied member of the Triporthus genus that can reach a maximum length of 10.7 cm.  It [...]

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Triportheus culter

Family: Characidae
Distribution: Triportheus culter is a benthopelagic freshwater species that is distributed in South America’s Amazon River basin.  It has been collected from the small tributaries of the Ampiyacu River and also from the Ucayali River to the mouth of the Rio Negro.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 [...]

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Triportheus brachipomus

Family: Characidae
Distribution: Triportheus brachipomus is a benthopelagic freshwater species that is distributed in South America’s Rio Orinoco, Essequibo River, Courantijne River, Maroni River, Demerara River and the Araguari drainages.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus brachipomus is an elongated Triporthus species that can [...]

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Triportheus auritus

Family: Characidae
Distribution: Triportheus auritus is a benthopelagic freshwater species distributed in Brazil’s Amazon River, the Tocantins and Araguia basins, and the Orinoco River basin, Trinidad.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus auritus is an elongated Triporthus species that can reach up to 24 cm [...]

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Triportheus angulatus (Dusky Narrow Hatchetfish)

Family: Characidae
Distribution: Triportheus angulatus, otherwise known as the Dusky Narrow Hatchetfish, is a river-dwelling species that is distributed in the waters of Argentina, Bolivia, Brazil, Peru, Venezuela and Ecuador.
PH: 5.0 – 7.5
Temperature: 22°C – 30C (72 – 86F)
Hardness: 0 – 20

Description: Triportheus angulatus males can reach a maximum length of around [...]

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Triportheus albus

Family: Characidae
Distribution: Triportheus albus is distributed in the Amazon, Tocantins and Araguaia basins, South America.
PH: 5.0 – 7.0
Temperature: 22°C – 30C (72 – 86F)
Hardness: 1 – 15

Description: Triportheus albus can reach a maximum length of 15 cm in an aquarium.   This species has a pointed head and a snout that looks [...]

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Trinectes maculatus (Hogchoker)

Family: Achiridae
Distribution: Trinectes maculatus, commonly known as the Hogchoker, has its origins in the Western Atlantic, from Massachusetts and the northern Gulf o Mexico down to Venezuela, South America.  This species is found in coastal and fresh waters, and can reach a depth of 75 metres.
PH: 6.0 – 8.0
Temperature: 5°C – 22C (41 [...]

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Trigonostigma heteromorpha (Harlequin Rasbora/Tetra)

Family: Cyprinidae
Distribution: Trigonostigma heteromorpha, commonly known as the Harlequin Rasbora, is found in Thailand, Sumatra, Singapore and Malaysia.  It is distributed in streams and other forest swamp waters.
PH: 5.0 – 7.0
Temperature: 23°C – 28C (73 – 82F)
Hardness: 5 – 12 dH

Description: Trigonostigma heteromorpha can reach a length of 3 – 5 cm [...]

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Trigonostigma hengeli (Glowlight Rasbora)

Family: Cyprinidae
Distribution: Trigonostigma hengeli, perhaps better known as the Glowlight Rasbora or Hengel’s Rasbora, is native to Borneo and Sumatra, Indonesia.  It has been collected from Sumatra’s Jambi province and from the Tambesi River.  It is usually found in gentle streams and densely vegetated tributaries.
PH: 5.5 – 7.5
Temperature: 23°C – 28C (73 – 82F)
Hardness: [...]

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Trichopsis vittata (Croaking Gourami)

Family: Osphronemidae
Distribution: Trichopsis vittata, commonly known as the Croaking Gourami, is a freshwater species found in Borneo, Java, and Sumatra and from Thailand to Vietnam.  It is generally found in stagnant waters with plenty of floating vegetation, particularly throughout the middle and lower areas of the Mekong.
PH: 6.0 – 8.0
Temperature: 22°C – 28C (71 [...]

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Trichopsis pumila (Pygmy Gourami)

Family: Osphronemidae
Distribution: Trichopsis pumila, commonly known as the Pygmy Gourami, is a benthopelagic freshwater species found in areas of Thailand and Laos, through to Indonesia.  It is generally found in ditches, peats and small ponds, but particularly in stagnant waters with plenty of floating vegetation.
PH: 6.0 – 7.0
Temperature: 25°C – 28C (77 – 82F)
Hardness: [...]

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Trichogaster microlepis (Moonlight Gourami)

Family: Osphronemidae
Distribution: Trichogaster microlepis, commonly known as the Moonlight Gourami, is a freshwater species found originally in the Mekong in Vietnam and Cambodia, and in the Chao Phraya basin.  It has since been introduced to Thailand’s Mekong basin.  It is found in sluggish, heavily vegetated waters and in swamps and ponds.
PH: 6.0 – 7.0
Temperature: [...]

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Trichogaster leeri (Pearl Gourami)

Family: Osphronemidae
Distribution: Trichogaster leeri, commonly known as the Pearl Gourami, is a freshwater species found in Thailand, Borneo, Sumatra and Malaysia; it is mostly distributed in acidic, lowland swamps.
PH: 6.0 – 8.0
Temperature: 25°C – 28C (77 – 82F)
Hardness: 5 – 15 dH

Description: Trichogaster leeri can reach a length of 13 cm in [...]

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Trachelyopterus fisheri (Woodcat)

Family: Auchenipteridae
Distribution: Trachelyopterus fisheri, commonly known as the Woodcat, is a freshwater species found in the Suico River basin, in South America .
PH: 6.0 – 7.0
Temperature: 22°C – 32C (72 – 90F)
Hardness: 5 – 19 dH

Description: Trachelyopterus fisheri can reach a maximum length of 28 cm in an aquarium.   This slender fish [...]

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Toxotes jaculatrix (Banded Archerfish)

Family: Toxotidae
Distribution: Toxotes jaculatrix, commonly known as the Banded Archerfish, is a freshwater and brackish species found throughout Asia and Oceania, specifically from India to the Philippines and south to Indonesia, Solomon Islands, Vanuatu, Papua New Guinea, and northern parts of Australia.
PH: 7.0 – 8.0
Temperature: 25°C – 30C (77 – 86F)
Hardness: 18 – 30 [...]

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Thoracocharax stellatus (Spotfin Hatchetfish)

Family: Gasteropelecidae
Distribution: Thoracocharax stellatus, also known as the Spotfin Hatchetfish, is a pelagic freshwater species found in the still waters of Argentina and Brazil, specifically in the Amazon, Parana and Orinoco River basins.
PH: 6.0 – 7.5
Temperature: 23°C – 29C (73 – 84F)
Hardness: 3 – 15 dH

Description: Thoracocharax stellatus can reach a maximum [...]

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Thoracocharax securis (Greater Hatchetfish)

Family: Gasteropelecidae
Distribution: Thoracocharax securis, also known as the Greater Hatchetfish, is a pelagic freshwater species found in the lower Amazon Basin, particularly in lakes, swamps and heavily vegetated ponds.  It is occasionally found in fast-moving, shallow streams.
PH: 6.0 – 7.5
Temperature: 23°C – 30C (73 – 86F)
Hardness: 4 – 15 dH

Description: Thoracocharax securis [...]

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Thayeria obliqua (Penguinfish)

Family: Characidae
Distribution: Thayeria obliqua, sometimes called the Penguinfish, is a pelagic freshwater species found in the middle Tocantins, Guapore and middle Amazon basins, in South America.  It is mostly distributed in grassy brooks and creeks, particularly those with plenty of algae and vegetation.
PH: 6.0 – 7.5
Temperature: 20°C – 28C (68 – 82F)
Hardness: 2 – [...]

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Thayeria ifati (Half-striped Penguin Tetra)

Family: Characidae
Distribution: Thayeria ifati, sometimes called the Half-striped Penguin Tetra, is a pelagic freshwater species found in the Maroni and Approuague River basins, French Guiana.  It is distributed in sandy-bottomed creeks, lentic waters and shallow, calm areas.
PH: 6.0 – 7.0
Temperature: 23°C – 28C (74 – 82F)
Hardness: 4 – 12 dH

Description: Thayeria ifati, [...]

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Tateurndina ocellicauda (Peacock Gudgeon)

Family: Eleotridae
Distribution: Tateurndina ocellicauda, commonly known as the Peacock Gudgeon, is a freshwater species native to New Guinea and east Papua; it is mostly found in rainforest streams, rivers and ponds.
PH: 6.5 – 7.0
Temperature: 23°C – 28C (74 – 82F)
Hardness: 4 – 14 dH

Description: Tateurndina ocellicauda reaches a maximum length of 7.5 [...]

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Tanichthys albonubes (White Cloud Mountain Minnow)

Family: Cyprinidae
Distribution: Tanichthys albonubes, commonly known as the White Cloud Mountain Minnow, is a freshwater species that has its origins in China’s White Cloud Mountains.  It is also found in parts of Vietnam.
PH: 6.0 – 8.0
Temperature: 18°C – 22C (64 – 72F)
Hardness: 5 – 10 dH

Description: Tanichthys albonubes reaches a maximum length [...]

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Aphyosemion alpha

Family: Nothobrachiidae

Distribution: Aphyosemion alpha is an African species which is only known from Cape Esterias, northwestern Gabon.  It likes to swim in clear waters over sand and is generally found in shady forest creeks.
PH: 5.5 – 7.5
Temperature: 20 – 24°C (68 – 75°F)
Hardness: 0 – 4 dH (in nature)
Description: Aphyosemion alpha is certainly [...]

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Tanganicodus irsacae (Spotted Goby Cichlid)

Family: Cichlidae
Distribution: Tanganicodus irsacae, commonly known as the Spotted Goby, is a freshwater species endemic to Lake Tanganyika, Africa.  It is usually found near the shoreline, among the pebbles.
PH: 7.5 – 8.5
Temperature: 24°C – 28C (75 – 82F)
Hardness: 10 – 20 dH

Description: Tanganicodus irsacae usually reaches a length of 6 – 7 [...]

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Aphyosemion ahli

Family: Nothobrachiidae

Distribution: Aphyosemion ahli is an African species found in shallow swamps in forest areas, specifically the Mungo drainage in west and southwest Cameroon, down to the Rio Benito drainage in west Equatorial Guinea.
PH: 5.5 – 7.5
Temperature: 22 – 26°C (72 – 79°F)
Hardness: 0 – 4 dH (in nature)
Description: Aphyosemion ahli is very [...]

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Symphysodon aequifasciatus (Blue Discus)

Family: Cichlidae
Distribution: Symphysodon aequifasciatus, commonly known as Blue Discus, is a freshwater species found in the Amazon River basin along the Solimoes-Amazon River from the Putumayo River in Peru and Columbia, through to Brazil’s Tocantins River basin; it is distributed in the rocky areas of tributaries.
PH: 5.0 – 8.0
Temperature: 26°C – 30C (79 – [...]

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Aphyosemion abacinum

Family: Nothobrachiidae

Distribution: Aphyosemion abacinum is distributed in swampy, quiet brooks under forest cover, particularly 30 km north of Mekambo, upper Ivindo drainage, northeastern Gabon.
PH: 6.0 – 7.0
Temperature: 18 – 22°C (64 – 72°F)
Hardness: < 10 dH
Description: Aphyosemion abacinum is a small killifish which measures 3.5 cm in length at best.  It has a [...]

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Symphysodon discus (Red Discus)

Family: Cichlidae
Distribution: Symphysodon discus, commonly known as Red Discus, is a freshwater species found in the Amazon River basin, Brazil, in the lower Abacaxis River and in the lower Trombetas River; it is distributed in slow rivers and tributaries.
PH: 5.0 – 6.5
Temperature: 27°C – 33C (81 – 91F)
Hardness: 3 – 15 dH
[...]

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Aphyocharax anisitsi (Bloodfin Tetra)

Family: Characidae

Distribution: Aphyocharax anisitsi, commonly known as the Bloodfin Tetra, is distributed throughout the upper and middle layers of the Parana River basin, South America.
PH: 6.0 – 8.0
Temperature: 18 – 28°C (64 – 82°F)
Hardness: 2 – 30 dGH
Description: The smallish Bloodfin Tetra, which can reach up to 5 cm in length, has a [...]

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Synodontis nigriventris (Blotched Upside-down Catfish)

Family: Mochokidae
Distribution: Synodontis nigriventris, commonly known as Blotched Upside-down Catfish, is a freshwater species found in the Congo River basin and the Kasai and Ubangi drainages, Africa.  There are reports it has also been seen in Makaka, outside the Congo River basin. 
PH: 6.0 – 8.0
Temperature: 22°C – 26C (72 – 79F)
Hardness: 5 – [...]

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Anostomus ternetzi (Headstander)

Family: Anostomidae

Distribution: Anostomus ternetzi, better known as Headstander, is distributed in the fast-flowing rivers of South America.  It is seen in the Araguaia, Orinoco and Amazon River basis, as well as coastal rivers of Guianas.
PH: 5.5 – 7.5
Temperature: 24 – 28°C (76 – 84°F)
Hardness: 8 – 20 dH
Description: The Headstander, which can reach [...]

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Synodontis multipunctatus (Cuckoo Catfish)

Family: Mochokidae
Distribution: Synodontis multipunctatus, commonly known as Cuckoo Catfish, is a freshwater species endemic to Lake Tanganyika, Africa.  It can be found at depths of up to 65 metres. 
PH: 8.0 – 9.0
Temperature: 21°C – 28C (70 – 82F)
Hardness: 8 – 18 dH

Description: Synodontis multipunctatus can reach a maximum length of around [...]

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Anostomus spiloclistron (False Three-Spotted Anostomus)

Family: Anostomidae

Distribution: The South American species Anostomus spiloclistron is distributed in the Nickerie River basin, Suriname.
PH: 5.0 – 6.0
Temperature: 24 – 28°C (75 – 84°F)
Hardness: 5 – 12 dH
Description: There is little descriptive information on Anostomus spiloclistron available.  This large South American Headstander can reach up to 16 cm in length.  Like other [...]

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Synodontis decora (Clown Squeaker)

Family: Mochokidae
Distribution: Synodontis decora, sometimes known as Clown Squeaker, is a freshwater species found throughout the Congo River basin, with the exception of the Luapula and Luvua drainages; Pool Malebo, and the Ubangi and Kasai drainages. 
PH: 6.0 – 8.0
Temperature: 23°C – 27C (73 – 81F)
Hardness: 4 – 25 dH

Description: Synodontis decora [...]

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Sturisoma panamense (Royal Whiptail)

Family: Osphronemidae
Distribution: Sturisoma panamense, sometimes known as Royal Whiptail, is a freshwater species found in the Pacific slope rivers of Panama, Ecuador and Columbia. 
PH: 6.5 – 7.5
Temperature: 20°C – 22C (72 – 77F)
Hardness: 10 – 20 dH

Description: Sturisoma panamense can reach a maximum length of around 26 cm, but is usually [...]

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Anostomus plicatus

Family: Anostomidae

Distribution: The species Anostomus plicatus is distributed in South America’s Essequibo River basin.
PH: 5.0 – 6.0
Temperature: 24 – 28°C (75 – 84°F)
Hardness: 5 – 12 dH
Description: There is little information on Anostomus plicatus available.  This freshwater species can reach up to 10 cm in length.
Diet: We can presume that this species, like [...]

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Sphaerichthys osphromenoides (Chocolate Gourami)

Family: Osphronemidae
Distribution: Sphaerichthys osphromenoides, sometimes known as Chocolate Gourami, is a freshwater species found in Sumatra, Borneo and Malaya; it is restricted to peats. 
PH: 4.0 – 6.0
Temperature: 24°C – 27C (75 – 81F)
Hardness: 0 – 4 dH

Description: Sphaerichthys osphromenoides can reach a maximum length of around 7 cm. This species is [...]

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Anostomus longus

Family: Anostomidae

Distribution: The species Anostomus longus is distributed throughout the upper Amazon region of Peru, South America.
PH: 6.0 – 7.0
Temperature: 24 – 27°C (75 – 81°F)
Hardness: 3 – 16 dH
Description: There is little information on Anostomus longus within the hobby.  It has many similarities to – and is in fact a sub-species of [...]

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Spathodus erythrodon (Blue-spotted Goby)

Family: Cichlidae
Distribution: Spathodus erythrodon, sometimes known as Blue-spotted Goby, is a freshwater species endemic to Lake Tanganyika, Africa, with the exception of the southern end.  It is rarely seen in more than a foot of water; it is often found right on the rubble shoreline. 
PH: 7.0 – 8.5
Temperature: 25°C – 27C (77 – [...]

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Anostomus intermedius

Family: Anostomidae

Distribution: The species Anostomus intermedius is distributed throughout Brazil’s Xingu River basin.
PH: N/A
Temperature: N/A
Hardness: N/A
Description: There is little information on Anostomus intermedius within the hobby.
Diet: N/A
Breeding: There is little information on this species’ breeding habits.  It most likely breeds in a similar fashion to Anostomus anostomus.  You might consider increasing the temperature [...]

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Semaprochilodus taeniurus (Silver Prochiliodus)

Family: Prochilodontidae
Distribution: Semaprochilodus taeniurus, also known as Silver Prochilodus, is a freshwater species found in the central parts of the Amazon basin, Brazil.  It can be found in floodplain lakes, forest streams and tributaries.
PH: 5.5 – 7.5
Temperature: 23°C – 29C (73 – 84F)
Hardness: 1 – 15 dH

Description: Semaprochilodus taeniurus can reach a [...]

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Anostomus brevior

Family: Anostomidae

Distribution: The species Anostomus brevior is distributed in shallow rivers and creeks, specifically the Oyapock River basin in French Guiana.
PH: 5.0 – 6.0
Temperature: N/A
Hardness: N/A
Description: Anostomus brevior will generally reach around 12 cm in length. This species is less commonly seen in the aquarium world than other Anostomidae.  It is quite abundant [...]

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Semaprochilodus insignis (Insignis Prochiliodus)

Family: Prochilodontidae
Distribution: Semaprochilodus insignis, also known as Insignis Prochilodus, is native to Brazil Guyana, Peru, Columbia and Ecudaor; it feeds mostly in floodplains but migrates and spawns in the river channels.
PH: 5.5 – 7.5
Temperature: 22°C – 26C (72 – 81F)
Hardness: 1 – 15 dH

Description: Semaprochilodus insignis can reach a maximum length of [...]

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Anostomus anostomus (Striped Headstander)

Family: Anostomidae

Distribution: The species Anostomus anostomus, better known as Striped Headstander, is distributed in South America’s Orinoco and Amazon River basins, the rivers of Venezuela and Columbia, and there are reports it has been seen in Suriname.
PH: 6.0 – 8.0
Temperature: 22 – 28°C (72 – 84°F)
Hardness: 5 – 12 dH
Description: The Striped Headstander [...]

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Sawbwa resplendens (Sawbwa Barb)

Family: Cyprinidae
Distribution: Sawbwa resplendens, also known as Sawbwa Barb, is a freshwater species found in Myanma’s Inle lake.  This species is all through the lake, including the surrounding swamps, and occurs in big shoals among dense vegetation in both clear and foul waters.
PH: 7.0 – 8.0
Temperature: 21°C – 25C (70 – 79F)
Hardness: 9 – [...]

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Anostomus ternetzi (Headstander)

Family: Anostomidae

Distribution: Anostomus ternetzi, better known as Headstander, is distributed in the fast-flowing rivers of South America.  It is seen in the Araguaia, Orinoco and Amazon River basis, as well as coastal rivers of Guianas.
PH: 5.5 – 7.5
Temperature: 24 – 28°C (76 – 84°F)
Hardness: 8 – 20 dH
Description: The Headstander, which can reach [...]

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Rhodeus sericeus (Amur Bitterling)

Family: Cyprinidae
Distribution: Rhodeus sericeus, also known as Amur Bitterling, is a freshwater species found throughout Europe and Asia.  The subspecies Rhodeus sericeus amarus is found in eastern and central Europe; Rhodeus sinensis sinensis is distributed in the Jangtze basin.  This species occurs in ponds, lakes, the backwaters of rivers and sandy pools. 
PH: 5.5 [...]

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Alestopetersius caudalis (Yellowtail Tetra)

Family: Alestidae

Distribution: Alestopetersius caudalis, commonly known as the Yellowtail Tetra, is distributed throughout Africa’s Congo River basin.
PH: 6.5 – 8.0
Temperature: 22 – 26°C (72 – 79°F)
Hardness: 10 – 20 dH
Description: The Yellowtail Tetra can reach around 7 cm in length; females are slightly smaller than males.  This species has a pale body which [...]

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Rhodeus amarus (European Bitterling)

Family: Cyprinidae
Distribution: Rhodeus amarus, also known as European Bitterling, is a freshwater species found throughout Europe.  It is distributed in the Rhone basin to the Neva in Russia; and south to the Black Sea.  It is also in the Black, Aegean and western and southern Caspian Seas.  It also appears in the Mediterranean basin and [...]

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Aequidens pulcher (Blue Acara)

Family: Cichlidae

Distribution: Aequidens pulcher, or Blue Acara, are distributed in the standing waters and flowing streams of Central and South America, Trinidad and Venezuela.
PH: 6.5 – 8.0
Temperature: 18 – 23°C (64 – 73°F)
Hardness: 1 – 25 dH
Description: The Blue Acara, which can reach a large 16 cm in length, has a sparkling blue-gray [...]

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Rasbora vaterifloris (Pearly Rasbora)

Family: Cyprinidae
Distribution: Rasbora vaterifloris, also known as Pearly Rasbora, is a Sri Lankan freshwater species found in the middle catchment area of the Nilwala and Kalu basins.  It is generally found in shallow, sheltered forest streams. 
PH: 6.0
Temperature: 25°C – 29C (77 – 84F)
Hardness: 5 – 8 dH

Description: Rasbora vaterifloris can reach [...]

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Acanthophthalmus kuhli (Kuhli Loach)

Family: Cobitinae

Distribution: acanthophthalmus kuhli, better known as Kuhli Loach, has its origin in the hills streams and lowland forest canals of Borneo and Sumatra, Indonesia.
PH: 5.5 – 6.5
Temperature: 24 – 27°C (75 – 81°F)
Hardness: 4 – 10 dH
Description: The Kuhli Loach is a peaceful, snake-like creature with an irregular colour pattern consisting of [...]

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Rasbora trilineata (Three-lined Rasbora)

Family: Cyprinidae
Distribution: Rasbora trilineata, commonly known as Three-lined Rasbora, is a popular Asian freshwater species found in the Malay Peninsula, Borneo and Sumatra, as well as the Chao Phraya and Mekong basins.  It is generally found in slow-flowing rivers, lakes, swamps and forest habitats. 
PH: 6.0 – 8.0
Temperature: 23°C – 25C (74 – 77F)
Hardness: [...]

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Abramites hypselonotus (Marbled Headstander)

Family: Anostomidae

Distribution: Abramites hypselonotus is distributed in the South American waters of Orinoco, Amazon, Paraguay and the lower Parana River basins.  They are typically found in fast-flowing waters and rivers with plenty of rocks.
PH: 6.0 – 7.5
Temperature: 23 – 27°C (73 – 81°F)
Hardness: 2 – 18 dH
Description: The Marbled Headstander can reach a [...]

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Rasbora steineri (Chinese Rasbora)

Family: Cyprinidae
Distribution: Rasbora steineri, commonly known as Chinese Rasbora, is an Asian freshwater species found in Vietnam, Laos and south-eastern China. 
PH: 6.0 – 6.5
Temperature: 22°C – 24C (72 – 75F)
Hardness: 10 – 15 dH

Description: Rasbora steineri can reach a maximum length of around 10 cm, but is often smaller.  It has [...]

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Procambarus versutus (Sly Crayfish)

Family: Cambaridae

Distribution: Procambarus versutus, known commonly as the Sly Crayfish, is distributed in North America from Alabama’s Mobile River drainage east to the Chattahoochee-Apalachicola drainage in Alabama, Georgia and Florida.
PH: 7.0 – 8.0 (but it is quite tolerant).
Temperature: 18 – 26°C (64 – 79°F)
Hardness: 6 – 20 dH
Description: Procambarus versutus has a black-splotched [...]

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Rasbora sarawakensis (Sarawak Rasbora)

Family: Cyprinidae
Distribution: Rasbora sarawakensis, commonly known as Sarawak Rasbora, is an Asian freshwater species found in Borneo and Sarawak, Malaysia.  It is also distributed in the West Kalimantan province in Indonesia, and the Mempawah and Melawi, in Kalimantan Barat.  It usually resides in slow forest streams littered with thick vegetation.
PH: 6.0 – 7.5
Temperature: 22°C – [...]

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Procambarus vasquezae

Family: Cambaridae

Distribution: Procambarus vasquezae is another Central American crayfish distributed in Mexican waters.
PH: 7.0 is a suitable level.
Temperature: 18 – 26°C (64 – 79°F)
Hardness: 9 – 13 dGH (but can withstand many different levels)
Description: Procambarus vasquezae will grow, if healthy, up to 7 cm in length; males are slightly larger than females.  This [...]

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Rasbora pauciperforata (Red-stripe Rasbora)

Family: Cyprinidae
Distribution: Rasbora pauciperforata, commonly known as Red-striped Rasbora, is an Asian freshwater species found in Sumatra, Borneo, Singapore, and in the Malay Peninsula.  It tends to inhabit black water streams and forest peat swamps filled with fallen leaves, branches and twigs. 
PH: 5.0 – 7.5
Temperature: 23°C – 26C (73 – 79F)
Hardness: 5 – [...]

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Procambarus toltecae

Family: Cambaridae

Distribution: Procambarus toltecae is a Central American crayfish with its origins in Mexico.
PH: 7.5 – 8.5
Temperature: 10 – 22°C (50 – 72°F)
Hardness: 9 – 13 dGH
Description: Procambarus toltecae will grow a maximum length of 8 cm.  It is one of the more colourful species of crayfish – naturally colourful, not selectively bred [...]

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Rasbora leptosoma (Copper-striped Rasbora)

Family: Cyprinidae
Distribution: Rasbora leptosoma, commonly known as Copper-striped Rasbora, is an Asian freshwater species found in Sumatra, Indonesia.
PH: 5.0 – 7.0
Temperature: 23°C – 26C (73 – 79F)
Hardness: 2 – 10 dH

Description: Rasbora leptosoma can reach a maximum length of around 9 cm.  It is an elongated, fork-tailed fish with an olive-brown back and [...]

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Procambarus spiculifer (White Tubercled Crayfish)

Family: Cambaridae

Distribution: Procambarus spiculifer is a North American crayfish distributed from Georgia down to Florida, and west to river systems in Alabama.  It is known in every river system in Alabama with the exception of the Escatawpa and Tennessee systems.
PH: 6.0 – 8.0
Temperature: 10 – 22°C (50 – 72°F)
Hardness: 9 – 13 dGH
Description: [...]

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Rasbora kalochroma (Clown Rasbora)

Family: Cyprinidae
Distribution: Rasbora kalochroma, commonly known as Clown Rasbora, is an Asian freshwater species found in the Malay Peninsula – the states of Selangor, Pahang, Johor and Terengganu – and the Greater Sunda Islands of Sumatra and Borneo; it resides in black water streams and peat swamps.
PH: 5.0 – 7.5
Temperature: 23°C – 28C (72 – [...]

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Procambarus pubescens

Family: Cambaridae

Distribution: Procambarus pubescens is an American crayfish distributed in the Savannah River basin of Georgia and South Carolina, particularly the Barnwell and Aiken Counties.  It has been sighted as far south as Hampton County.
PH: 6.0 – 8.0
Temperature: 10 – 30°C (50 – 86°F)
Hardness: Is generally found in soft, acidic water in the [...]

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Rasbora elegans (Elegant Rasbora)

Family: Cyprinidae
Distribution: Rasbora elegans, commonly known as Elegant Rasbora, is an Asian freshwater species found in the Malay Peninsula, Singapore and the Greater Sunda Islands of Sumatra and Borneo.  It has been seen in swift forest streams, areas with stones, sand and gravel, as well as sluggish backwaters full of dense vegetation.
PH: 5.0 – [...]

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Procambarus sp. (Marble Crayfish)

Family: Cambaridae

Distribution: The specific origin of Procambarus sp, or Marble Crayfish, is unknown, other than it is found in the United States.  They first appeared in the German pet fish trade.
PH: 6.5 – 7.5
Temperature: 16 – 26°C (60 – 78°F)
Hardness: 9 – 13 dGH (but can withstand many levels of hardness)

Description: Procambarus [...]

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Rasbora einthovenii (Brilliant Rasbora)

Family: Cyprinidae
Distribution: Rasbora einthovenii, commonly known as Brilliant Rasbora, is an Asian freshwater species found in the Malay Peninsula and Indonesia, mostly in forest streams.
PH: 6.0 – 6.5
Temperature: 22°C – 26C (71 – 79F)
Hardness: 4 – 10 dH

Description: Rasbora einthovenii can reach a maximum length of around 9 cm.  Males are smaller [...]

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Procambarus enoplosternum

Family: Cambaridae

Distribution: Procambarus enoplosternum is distributed from the Santee River basin, South Carolina, to the Ogeechee, Savannah and Altamaha River basins in the east parts of Georgia.
PH: 6.5 – 8.0
Temperature: 15 – 27°C (60 – 82°F)
Hardness: Found in soft water in the wild, but can have a higher gH in an aquarium.  No [...]

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Rasbora dusonensis (Rosefin Rasbora)

Family: Cyprinidae
Distribution: Rasbora dusonensis, commonly known as Rosefin Rasbora, is an Asian freshwater species found in the Malay Peninsula, Sumatra, Borneo, and in the Mekong and Chao Phraya basins.  It prefers slow currents and is usually found near or at the surface of large rivers.
PH: 5.0 – 7.5
Temperature: 23°C – 26C (73 – 79F)
Hardness: [...]

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Procambarus cubensis (Cuba Crayfish)

Family: Cambaridae

Distribution: Procambarus cubensis, known also as the Cuba Crayfish, has its origins in Cuba.  Once a flourishing species, the Cuba Crayfish is starting to become rare.
PH: 6.5 – 8.5
Temperature: 15 – 28°C (59 – 85°F)
Hardness: 5 – 30 (gH); 3 – 20 (kH)

Description: The Cuba Crayfish is a peaceful species that [...]

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Rasbora dorsiocellata (Eyespot Rasbora)

Family: Cyprinidae
Distribution: Rasbora dorsiocellata, commonly known as Eyespot Rasbora, is an Asian freshwater species found in the Malay Peninsula and in Sumatra, Indonesia; it lives in streams and areas with high acidity.
PH: 6.0 – 6.5
Temperature: 20°C – 25C (68 – 77F)
Hardness: 0 – 10 dH

Description: Rasbora dorsiocellata can reach a maximum length [...]

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Procambarus clarkii (Red Swamp Crayfish)

Family: Cambaridae

Distribution: Procambarus clarkii has its origins in the south-central United States and north-eastern parts of Mexico.  It can now be found in the River Nile, Japan, Hawaii, and areas of Western Europe, including Spain and Portugal.  This crayfish is found in slow streams, swamps, ponds and ditches; it will not be seen in [...]

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Rasbora caudimaculata (Greater Scissortail)

Family: Cyprinidae
Distribution: Rasbora caudimaculata, commonly known as Greater Scissortail, is an Asian freshwater species found in forest creeks and at the surface of streams; it is distributed throughout Malaysian and Indonesian waters, and in the lower Mekong basin.    
PH: 6.0 – 7.0
Temperature: 20°C – 26C (68 – 79F)
Hardness: 5 – 10 dH

Description: [...]

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Procambarus allenii (Electric Blue Crayfish)

Family: Cambaridae

Distribution: Procambarus allenii – known also as Electric Blue Crayfish – is natively distributed in the United States, east of St Johns River and throughout the Florida peninsula, as well south of the Levy and Marion counties.
PH: 6.5 – 8.5
Temperature: 10 – 30°C (50 – 86°F)
Hardness: 9 – 13 dGH

Description: Procambarus [...]

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Rasbora borapetensis (Blackline Rasbora)

Family: Cyprinidae
Distribution: Rasbora borapetensis, commonly known as Blackline Rasbora, is an Asian freshwater species found in the Chao Phraya, Mekong and Meklong basins, and in the northern Malay Peninsula; it is distributed in streams, drains and ponds – usually in slow, turbid waters.    
PH: 6.5 – 7.0
Temperature: 22°C – 26C (72 – 79F)
Hardness: 5 [...]

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Procambarus acanthophorus

Family: Cambaridae

Distribution: Procambarus acanthophorus is distributed in streams and canals four kilometres east of Tuxtepec, Oaxaca, Mexico.
PH: 6.5 – 8.0
Temperature: 15 – 28°C (59 – 82°F)
Hardness: 5 – 30 (gH); 3 – 20 (kH)

Description: Procambarus acanthophorus can reach up to 10 cm in length.  It has hair on its pincers; males have [...]

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Rasbora argyrotaenia (Silver Rasbora)

Family: Cyprinidae
Distribution: Rasbora argyrotaenia, commonly known as Silver Rasbora, is an Asian freshwater species found in the Chao Phraya, Mekong and Mae Khlong basins, from the Malay Peninsula to Borneo, and in the Indonesian islands of Java and Sumatra.    
PH: 6.5 – 7.0
Temperature: 20°C – 26C (68 – 79F)
Hardness: 8 – 15 dH
[...]

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Potamalpheops sp. (Purple Zebra Shrimp)

Family: Alpheidae

Distribution: The Purple Zebra Shrimp has its origins in Asia, but its exact distribution is unknown.  It was introduced into the hobby in 2006; almost all Potamalpheops in the hobby have been caught in the wild and exported by locals.
PH: 6.5 – 7.5
Temperature: 23 – 28°C (73 – 82°F)
Hardness: 5 – 15 [...]

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Puntius vittatus (Green Stripe Barb)

Family: Cyprinidae
Distribution: Puntius vittatus, commonly known as Greenstripe Barb, is an Asian freshwater and brackish species found in India, Sri Lanka and Pakistan; it is distributed in ponds, lakes, streams and often in rice fields. 
PH: 6.0 – 6.5
Temperature: 20°C – 24C (68 – 75F)
Hardness: 8 – 15 dH

Description: Puntius vittatus can [...]

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Procambarus clarkii (Red Swamp Crayfish)

Family: Cambaridae

Distribution: Procambarus clarkii has its origins in the south-central United States and north-eastern parts of Mexico.  It can now be found in the River Nile, Japan, Hawaii, and areas of Western Europe, including Spain and Portugal.  This crayfish is found in slow streams, swamps, ponds and ditches; it will not be seen in [...]

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Puntius titteya (Cherry Barb)

Family: Cyprinidae
Distribution: Puntius titteya, commonly known as Cherry Barb, is an Asian freshwater species found in Sri Lanka’s Kelani and Nilwala basins; it is distributed in shaded streams and has a preference for shallow, slow-flowing waters. 
PH: 6.0 – 8.0
Temperature: 23°C – 27C (73 – 81F)
Hardness: 5 – 19 dH

Description: Puntius titteya [...]

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Palaemonetes paludosus (Grass Shrimp)

Family: Palaemonetes

Distribution: Palaemonetes paludosus, better known as Grass Shrimp, is native to freshwater lakes and rivers of southern parts of the United States, particularly in Florida.
PH: 6.5 – 7.5
Temperature: 18 – 30°C (64 – 85°F)
Hardness: 3 – 10 dH

Description: Palaemonetes paludosus has a transparent appearance which allows it to blend into the [...]

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Puntius ticto (Ticto Barb)

Family: Cyprinidae
Distribution: Puntius ticto, commonly known as Ticto Barb, is an Asian species found in India, Pakistan, Sri Lanka, Myanmar, Thailand and Bangladesh, among still, shallow, muddy-bottomed rivers. 
PH: 6.5 – 7.0
Temperature: 14°C – 22C (57 – 72F)
Hardness: 3 – 10 dH

Description: Puntius ticto can reach a maximum length of around 10 [...]

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Palaemonetes antennarius

Family: Palaemonetes

Distribution: Palaemonetes antennarius, mostly found in lakes and rivers, is distributed in the Mediterranean Sea, Italy.
PH: 6.5 – 8.5
Temperature: 10 – 30°C (50 – 86°F)
Hardness: N/A

Description: Palaemonetes antennarius is a small species which will grow to 5 cm in length; males will generally be smaller than females.  This shrimp has a [...]

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Puntius tetrazona (Tiger Barb)

Family: Cyprinidae
Distribution: Puntius tetrazona, commonly known as Tiger Barb, is an Asian freshwater species found in Sumatra and Borneo, in still and slow-moving rivers. 
PH: 6.5 – 7.5
Temperature: 20°C – 25C (68 – 77F)
Hardness: 3 – 10 dH

Description: Puntius tetrazona can reach a maximum length of around 8 cm.  It is a [...]

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Neocaridina zhangjiajiensis (Snowball Shrimp)

Family: Atyidae

Distribution: The exact origin of the Snowball Shrimp is unknown, although it was bred in Germany as a hybrid.
PH: 6.5 – 7.0
Temperature: 20 – 28°C (68 – 82°F)
Hardness: 3 – 25 dH

Description: The Snowball Shrimp, which grows up to 2.5 – 3 cm in length, is transparent with a milky-white body [...]

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Puntius semifasciolatus (Chinese Barb)

Family: Cyprinidae
Distribution: Puntius semifasciolatus, commonly known as Chinese Barb, is an Asian freshwater species found in Laos, Taiwan and Vietnam, as well as southwest China.  There are some feral populations in Singapore and Hawaii.  This species is usually distributed in flowing streams and tributaries.
PH: 6.0 – 8.0
Temperature: 18°C – 24C (64 – 75F)
Hardness: 5 [...]

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Neocaridina heteropoda (Yellow Shrimp)

Family: Atyidae

Distribution: The Yellow Shrimp has its origins in Japan, but were selectively bred in Germany from the Neocaridina heteropoda wild variety.
PH: 6.5 – 7.5
Temperature: 15 – 27°C (59 – 81°F)
Hardness: 3 – 15 dKH

Description: The Yellow Shrimp female can come in an extremely bright yellow colour, while males are more opaque [...]

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Puntius pentazona (Fiveband Barb)

Family: Cyprinidae
Distribution: Puntius pentazona, commonly known as Fiveband Barb, is an Asian freshwater species found from the Malay Peninsula to Sumatra, Indonesia.  It has also been recorded in Cambodia, Vietnam and Singapore; it mostly inhabits peat swamps and black water streams.
PH: 5.0 – 6.0
Temperature: 26°C – 29C (79 – 84F)
Hardness: 5 – 12 dH [...]

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Neocaridina denticulata (White Tiger Shrimp)

Family: Atyidae

Distribution: The White Tiger Shrimp originates from Okayama, Japan.  It is often called the Okayama Shrimp.
PH: 6.5 – 7.5
Temperature: 15 – 27°C (59 – 81°F)
Hardness: 3 – 15 dKH

Description: The White Tiger Shrimp may come in various different colours, but the offspring is transparent.  Males are usually 3 cm in length; [...]

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Neocaridina zhangjiajiensis (Blue Pearl Shrimp)

Family: Atyidae

Distribution: The Blue Pearl Shrimp, a direct relative of the Snowball Shrimp, was selectively bred in Germany by Ulf Gottschalk, a prolific German breeder.
PH: 6.5 – 7.5
Temperature: 23 – 28°C (74 – 82°F)
Hardness: 7 dKH

Description: The Blue Pearl Shrimp has an aesthetically pleasing light-blue colour which was attained only after many [...]

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Puntius partipentazona

Family: Cyprinidae
Distribution: Puntius partipentazona is an Asian freshwater species found in the Mekong, Mae Khlong and Chao Phraya basins in Thailand.  It has also been recorded in several coastal streams of southeast Thailand and Cambodia and in the Malay Peninsula.  .
PH: 6.0 – 7.0
Temperature: 22°C – 25C (72 – 77F)
Hardness: 12 dH

Description: [...]

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Puntius oligolepis (Checkered Barb)

Family: Cyprinidae
Distribution: Puntius oligolepis, known commonly as Checkered Barb, is an Asian freshwater species endemic to Sumatra, Indonesia.  It appears in sluggish creeks, slow rivers and pools and lakes; it is apparently more plentiful at higher altitudes.
PH: 6.0 – 6.5
Temperature: 20°C – 24C (68 – 75F)
Hardness: 2 – 10 dH

Description: Puntius oligolepis [...]

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Neocaridina heteropoda (Red Cherry Shrimp)

Family: Atyidae

Distribution: The red Neocaridina heteropoda, or Red Cherry Shrimp, originates from the waters of Taiwan.  The wild form, however, comes from North Vietnam and China.
PH: 6.5 – 8.0
Temperature: 18 – 28°C (64 – 82°F)
Hardness: gH 12

Description: The Red Cherry Shrimp is the most popular shrimp in the hobby, and an excellent [...]

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Puntius nigrofasciatus (Ruby Barb)

Family: Cyprinidae
Distribution: Puntius nigrofasciatus, better known as Ruby Barb, is an Asian freshwater species endemic to Sri Lanka.  It reportedly ranges between the Nilwala and Kelani river basins, mainly in the still waters of hilly areas.  It is also distributed in forest streams, ponds, pools and shady, vegetated areas.
PH: 6.0 – 6.5
Temperature: 22°C [...]

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Neocaridina zhangjiajiensis (White Pearl Shrimp)

Family: Atyidae

Distribution: The exact origin of this Neocaridina zhangjiajiensis, or Marbled Dwarf Shrimp, is unknown, although it was bred in Germany as a hybrid.
PH: 6.5 – 7.0
Temperature: 20 – 28°C (68 – 82°F)
Hardness: 12 gH

Description: The White Pearl Shrimp, which grows up to 2.5 – 3 cm in length, is transparent with [...]

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Puntius lineatus (Striped Barb)

Family: Cyprinidae
Distribution: Puntius lineatus, better known as Striped Barb, is an Asian freshwater species distributed in Malaysia and Indonesia, particularly in swamps, submerged grasses and in clear, black waters.
PH: 6.0 – 6.5
Temperature: 23°C – 26C (73 – 79F)
Hardness: 10 – 14 dH

Description: Puntius lineatus can reach a length of around 5 – 6 [...]

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Neocaridina palmata (Marbled Dwarf Shrimp)

Family: Atyidae

Distribution: The exact origin of Neocaridina palamata, or Marbled Dwarf Shrimp, is unknown.
PH: 7.0
Temperature: 25°C (77°F)
Hardness: 8 gH

Description: Neocaridina palmata is, even by Neocaridina standards, a very tiny species of shrimp.  Both males and females will reach a maximum of 2.5 cm in captivity.
Wild caught specimens may have orange balls visible [...]

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Neocaridina heteropoda

Family: Atyidae

Distribution: Neocaridina heteropoda, the wild version of the more common Red Cherry Shrimp and Yellow Shrimp, has its origins in China and Taiwan.  Its exact origin is unknown.  It has recently been released into the wild in Hawaii, to detrimental effect.
PH: 6.5 – 8.0
Temperature: 18 – 30°C (65 – 85°F)
Hardness: 3 – [...]

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Puntius lateristriga (Spanner Barb)

Family: Cyprinidae
Distribution: Puntius lateristriga, better known as Spanner Barb, is an Asian freshwater species distributed in Southeast Asia, particularly in quick moving streams and rivers.   
PH: 6.0 – 6.5
Temperature: 23°C – 29C (72 – 84F)
Hardness: 8 – 10 dH

Description: Puntius lateristriga can reach a length of around 15 – 18 cm. Adult females [...]

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Puntius hexazona (Six-banded Barb)

Family: Cyprinidae
Distribution: Puntius hexazona, better known as Six-banded Barb, is an Asian freshwater species distributed in the Malaysian Peninsula, Borneo and Sumatra; it is found in the Mekong basin.   
PH: 6.0 – 6.5
Temperature: 20°C – 24C (68 – 75F)
Hardness: 5 – 10 dH

Description: Puntius hexazona can reach a maximum length of 6 cm. [...]

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Macrobrachium assamense (Red Claw Shrimp)

Family: Palaemonidae

Distribution: Macrobrachium assamense originates from East Himalayan waters, Chota Nagpur and Satpura, and mountainous parts of Burma.
PH: 7.0 – 7.5
Temperature: 20 – 30°C (68 – 86°F)
Hardness: 3 (gH); 1.5 (kH)

Description: The male Red Claw Shrimp can reach 8 cm in length; females are shorter at 6 cm.  This species has a [...]

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Puntius filamentosus (Blackspot Barb)

Family: Cyprinidae
Distribution: Puntius filamentosus, better known as Blackspot Barb, is a south Asian freshwater species endemic to India, where it is distributed in lowland rivers, estuaries, reservoirs, clear streams, ponds and lakes.   
PH: 6.0 – 6.5
Temperature: 20°C – 24C (68 – 75F)
Hardness: 5 – 10 dH

Description: While Puntius filamentosus can reach a maximum [...]

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Puntius fasciatus (Melon Barb)

Family: Cyprinidae
Distribution: Puntius fasciatus, better known as Melon Barb, is an Asian freshwater species endemic to Goa, Karnataka, Kerala and Tamil Nadu in southern India, where it is distributed from the Kanyakumari district to the Maharashtra state in the north.  The Melon Barb is predominantly found in flowing rivers.   
PH: 6.0 – 6.5
Temperature: 22°C [...]

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Caridina cantonensis (Red Tiger Shrimp)

Family: Caridina

Distribution: The Red Tiger Shrimp is distributed in wild Chinese streams.
PH: 6.5 – 7.5
Temperature: 15 – 27°C (59 – 81°F)
Hardness: 3 – 10 dKH

Description: This Caridina shrimp has red stripes, black eyes and an orange or yellow tail.  Males are 2.5 cm in length; females are slightly larger at 3 cm.  [...]

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Caridina serrata (Red Tupfel Shrimp)

Family: Caridina

Distribution: Caridina serrata, better known as, Red Tupfel Shrimp, is another hybrid Caridina.  There is not a great deal of information on this relative of the Bee and Tiger Shrimp, other than it is selectively bred in Germany.
PH: 7.0 – 8.5
Temperature: 15 – 23°C (59 – 73°F)
Hardness: 1 – 12 (gH); 1 [...]

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Puntius everetti (Clown Barb)

Family: Cyprinidae
Distribution: Puntius everetti, commonly known as Clown Barb, is an Asian freshwater species found in Borneo and Sumatra.  It is  distributed through clear, slow-moving waters, in forest streams, in quiet shore areas and mostly in shallow waters.   
PH: 6.0 – 6.5
Temperature: 24°C – 30C (75 – 86F)
Hardness: 7 – 17 dH

Description: Puntius [...]

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Puntius cumingii (Two-spot Barb)

Family: Cyprinidae
Distribution: Puntius cumingii, commonly known as Two-spot Barb, is a Sri Lankan freshwater species found mainly from Kelani to the Gin basins.  It was introduced into the Mahaweli basin and is now well distributed between Gampola and Ginigathena.  Yellow-finned species usually occur in flowing waters, close to the substrate, while red-finned species are found [...]

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Caridina sp. (Red Goldflake Shrimp)

Family: Caridina

Distribution: The Red Goldflake Shrimp is distributed in the waters of Sulawesi, Indonesia
PH: 7.0 – 8.5
Temperature: 26 – 29°C (78 – 85°F)
Hardness: 5 kH; gH 12

Description:  This Caridina shrimp, which measures around 2.5 cm in length, has a visually appealing red and gold colouration.  The dark maroon colour, coupled with its [...]

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Puntius conchonius (Rosy Barb)

Family: Cyprinidae
Distribution: Puntius conchonius, better known as Rosy Barb, is an Asian freshwater species found in Pakistan, Afghanistan, India, Nepal, Bangladesh, and has been reported in Myanmar.  It is distributed in lakes and fast-flowing hill streams.   
PH: 6.0 – 8.0
Temperature: 18°C – 22C (64 – 72F)
Hardness: 5 – 19 dH

Description: Puntius conchonius can [...]

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Caridina cantonensis (Bee Shrimp)

Family: Caridina

Distribution: The Bee Shrimp, a direct relative of the popular Crystal Red Shrimp, originates from southern China.
PH: 6.5 – 7.5
Temperature: 18 – 26°C (64 – 78°F)
Hardness: 4 – 6 gH; 1 – 2 kH

Description:  The Bee Shrimp comes in a wide range of patterns.  Its distinctive feature is its four white [...]

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Puntius bimaculatus (Redside Barb)

Family: Cyprinidae
Distribution: Puntius bimaculatus, commonly known as Redside Barb, is a sub continental freshwater species found in the hill streams, dry-zone rivers and lowland swamps of India and Sri Lanka.  It has been recorded in the Bay of Bengal, including Andra Pradesh, Tamil Nadu and Karnataka, southeast India, as well as all throughout Sri Lanka.  [...]

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Puntius asoka (Asoka Barb)

Family: Cyprinidae
Distribution: Puntius asoka, commonly known as Asoka Barb, is an Sri Lankan freshwater species found in the Sitawaka River and its tributaries, and in Kelani.  It is distributed in deepish, fast-flowing water, usually in areas with gravel-sand substrates.   
PH: 6.5 – 7.5
Temperature: 25°C – 30C (77 – 86F)
Hardness: 1 – 18 dH

Description: [...]

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Caridina cf. cantonensis (Tiger Shrimp)

Family: Caridina

Distribution: The Tiger Shrimp, one of the more popular Caridinas, originates from Southeast Asia.
PH: 6.0 – 7.5
Temperature: 20 – 24°C (68 – 75°F)
Hardness: 3 – 10 dKH

Description:  The Tiger Shrimp has a yellow head and black tail, along with black stripes that stretch along its body.  Males reach a smallish 2.5 [...]

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Puntius arulius (Arulius Barb)

Family: Cyprinidae
Distribution: Puntius arulius, commonly known as Arulius Barb, is an Asian species found in India’s Cauvery basin, Tamil Nadu, Kerala and Tambraparani river system; it is distributed in large streams, lakes and rivers.   
PH: 6.0 – 6.5
Temperature: 19°C – 25C (66 – 77F)
Hardness: 5 – 10 dH

Description: Puntius arulius can reach a [...]

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Caridina serratirostris (Ninja Shrimp)

Family: Caridina

Distribution: Caridina serratirostris, better known as Ninja Shrimp, has its origins in the Indo-Pacific region.  It has been seen in the waters of Madagascar, Philippines, Fiji, Japan, Indonesia, Malaysia and French Polynesia.
PH: 7.0 – 8.0
Temperature: 24 – 27°C (75 – 82°F)
Hardness: 10 – 25 gH

Description:  A shy and tiny shrimp – [...]

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Pterophyllum scalare (Freshwater Angelfish)

Family: Cichlidae
Distribution: Pterophyllum scalare, sometimes known as Freshwater Angelfish, is a benthopelagic species found in the Amazon River basin, in Peru, Columbia and Brazil, along the Soilimoes, Ucayali and Amazon rivers.  It is also found in Amapa, Brazil; the Essequibo River, Guyana; and the Rio Oyapock in French Guiana.  It is distributed in swampy, flooded [...]

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Caridina cf. cantonensis sp. (Crystal White Bee Shrimp)

Family: Caridina
Distribution: The Crystal White Bee shrimp has its origins in southern Chinese waters.
PH: 6.5 – 7.5
Temperature: 15– 26°C (59 – 78°F)
Hardness: 1 – 4°d

Description:  The male Crystal White Bee Shrimp will grow a length of 2.5 cm; females will be slightly larger at 3 cm.  This species has a series of small [...]

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Pterophyllum leopoldi (Leopold’s Angelfish)

Family: Cichlidae
Distribution: Pterophyllum leopoldi, sometimes known as Leopold’s Angelfish, is a benthopelagic freshwater species found along the Solimoes Amazon River between Manacapuru and Santarem, and in Guyana’s Essequibo River drainage.
PH: 6.0 – 8.0
Temperature: 21°C – 26C (70 – 79F)
Hardness: 6 – 16 dH

Description: Pterophyllum leopoldi can reach a maximum length of 5 [...]

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Caridina breviata (Bumble Bee Shrimp)

Family: Caridina
Distribution: Caridina breviata, or Bumble Bee Shrimp, originates from the waters of south eastern China, Hong Kong.
PH: 6.5 – 7.5
Temperature: 20– 25°C (68 – 77°F)
Hardness: 8 – 12 gH

Description:  The Bumblebee Shrimp will grow approximately 2.5 – 3 cm in length.  It has a colouration that ranges from black to brown, white [...]

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Pterophyllum altum (Altum Angelfish)

Family: Cichlidae
Distribution: Pterophyllum altum, better known as Altum Angelfish, is a South American freshwater species found in the upper Negro River drainage in the Amazon River basin; in tributaries within the Orinoco River basin, and through to Puerto Ayacucho.     
PH: 5.0 – 6.0
Temperature: 27°C – 31C (81 – 88F)
Hardness: 1 – 5 dH

Description: [...]

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Caridina cf. babaulti spp. (Caridina gracilirostris / Green Neon Shrimp)

Family: Caridina
Distribution: Caridina gracilirostris, or Green Neon Shrimp, is distributed in the waters of India.
PH: 6.5 – 7.5
Temperature: 20– 28°C (68 – 82°F)
Hardness: gH < 10; kH < 10)

Description:  The Babaulti group is very controversial and it is hard to tell the different species within this genus, given they are all so similar.  [...]

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Pseudomystus siamensis (Siamese Catfish / Bumblebee Catfish)

Family: Bagridae
Distribution: Pseudomystus siamensis, better known as either the Siamese Catfish or the Bumblebee Catfish, is an Asian freshwater species found in the Chao Phraya and Mekong basins; it has been seen in the Malay Peninsula, Maeklong and Southeast Thailand river systems.  This insect-feeding species is distributed in rivers and streams.   
PH: 6.0 – [...]

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Caridina gracilirostris (Rhino Shrimp / Red Nose Shrimp / Mosquito Shrimp)

Family: Caridina
Distribution: Caridina gracilirostris, perhaps best known as Rhino Shrimp, has its origins in India and Southeast Asia.
PH: 7.5 – 8.5
Temperature: 20– 27°C (68 – 80°F)
Hardness: 3 – 20 dH.

Description:  Caridina gracilirostris is a bizarre-looking dwarf shrimp with a long bright red rostrum.  This rostrum, which looks like a nose, is the reason [...]

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Pseudogastromyzon myersi (Sucker Belly Loach)

Family: Balitorinae
Distribution: Pseudogastromyzon myersi, better known as Sucker-belly Loach, is a benthopelagic Asian species endemic to Guangdong Province, China; it has also been reported in Hong Kong.  This algae-feeding species is distributed in rapid, flowing streams.   
PH: 7.0 – 8.0
Temperature: 20°C – 24C (68 – 75F)
Hardness: 8 – 12 dH

Description: Pseudogastromyzon myersi can [...]

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Caridina multidentata (Yamato / Amano Shrimp)

Family: Caridina
Distribution: Caridina multidentata, known simultaneously as the Yamato or Amano Shrimp, is found in Japan’s Yamato River, as well as the waters of Korea and Taiwan.
PH: 6.5 – 7.8
Temperature: 20– 28°C (68 – 82°F)
Hardness: 6 – 10 dGH

Description:  The Amato Shrimp, which measures around 5 cm in length, has red-brown points on [...]

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Caridina sp. (Golden CRS / Golden Bee Shrimp)

Family: Caridina
Distribution: The Golden Bee Shrimp, known sometimes as the Golden CRS (Crystal Red Shrimp), is thought to have originated from Japan.  There is not a lot of specific information on its origin; there are some suggestions it is a selectively bred hybrid of a white Crystal Red Shrimp and an Orange Bee Shrimp.
PH: [...]

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Poecilocharax weitzmani (Black Morpho Tetra)

Family: Crenuchidae
Distribution: Poecilocharax weitzmani, known also as Black Morpho Tetra, is a benthopelagic, Central American species distributed in the upper Negro, upper Solimoes, and the upper Orincoco River basins.  
PH: 5 – 6.5
Temperature: 24°C – 28°C (75 – 82F)
Hardness: 3 – 6 dH

Description: Poecilocharax weitzmani can reach up to 4 cm in length; [...]

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Poecilia velifera (Sailfin Molly)

Family: Poeciliidiae
Distribution: Poecilia velifera, known also as Sailfin Molly, is a benthopelagic, Central American species distributed in the Yucatan-Quintana Roo and lower Usumacinto-Laguna de Terminos systems.   
PH: 8.0
Temperature: 25°C – 28°C (77 – 82F)
Hardness: 13 – 19 dH

Description: Poecilia velifera can reach up to 15 cm in length; females can grow even larger.  [...]

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Poecilia sphenops (Molly)

Family: Poeciliidiae
Distribution: Poecilia sphenops, known also as Molly, is a benthopelagic, non-migratory species found in the Americas, from Mexico to Columbia.   
PH: 7.5 – 8.5
Temperature: 18°C – 28°C (64 – 82F)
Hardness: 11 – 30 dH

Description: Poecilia sphenops can get up to 6 cm in length; its common length is around 4 cm. It [...]

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Poecilia reticulata (Guppy)

Family: Poeciliidiae
Distribution: Poecilia reticulata, known also as Guppy, is a benthopelagic species found in Venezuela, northern Brazil, Barbados, and Trinidad.  It is usually distributed in warm springs and weedy ditches; it inhabits slow-flowing or still waters.
PH: 7.0 – 8.0
Temperature: 18°C – 28°C (64 – 82F)
Hardness: 9 – 19 dH

Description: Poecilia reticulata males [...]

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Poecilia latipinna (Sailfin Molly)

Family: Poeciliidiae
Distribution: Poecilia latipinna, or Sailfin Molly, is a North American species found from the Cape Fear drainage in North Carolina, to Veracruz, Mexico.  It is distributed in gently flowing, warm water, often in ponds, lakes, and vegetated backwaters.
PH: 6.0 – 7.0
Temperature: 22°C – 24°C (72 – 75F)
Hardness: 4 – 8 dH

Description: Poecilia [...]

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Pimelodus pictus (Pictus Catfish)

Family: Pimelodidae
Distribution: Pimelodus pictus, or Pictus Catfish, is a species of catfish found in South America’s Amazon and Orinoco River basins.
PH: 6.0 – 8.0
Temperature: 22°C – 25°C (72 – 77F)
Hardness: 5 – 19 dH

Description: Pimelodus pictus can reach up to 8 cm in length.  This species has horizontal black and white stripes on [...]

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Dianema urostriatum (Flagtail Catfish)

Family: Callichthyidae
Distribution: Dianema urostriatum, or Flagtail Catfish, is a species of catfish found in South America’s Amazon River basin, in Brazil.  It is mostly distributed in slow-moving creeks, tributaries, lakes and ponds.
PH: 6.0 – 8.0
Temperature: 25°C – 28°C (77 – 84F)
Hardness: 5 – 19 dH

Description: Dianema urostriatum can reach up to 8 cm [...]

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Devario malabaricus (Malabar Danio)

Family: Cyprinidae
Distribution: Devario malabaricus, or Malabar Danio, is a minnow species found around the west coasts of Sri Lanka and India.  It is distributed in a number of different habitats, ranging from mountain torrents to small pools; it is more common in flowing water than in tanks and reservoirs.
PH: 6.0 – 8.0
Temperature: 22°C – [...]

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Devario devario (Sind Danio)

Family: Cyprinidae
Distribution: Devario devario, or Sind Danio, is an Asian benthopelagic species found in Pakistan, Nepal, India and Bangladesh, and it has been reported from Afghanistan.  It is distributed among rivers, canals, ponds, and inside inundated fields.
PH: 6.0 – 8.0
Temperature: 15°C – 26°C (59 – 79F)
Hardness: 5 – 19 dH

Description: Devario devario males [...]

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Prionobrama filigera (Glass Bloodfin Tetra)

Family: Characidae
Distribution: Prionobrama filigera, known commonly as Glass Bloodfin, is a pelagic South American species distributed in several parts of the Amazon River basin, including Ecuador, Peru, Bolivia, Columbia and Brazil. 
PH: 6.0 – 8.0
Temperature: 23°C – 27C (72 – 79F)
Hardness: 1 – 30 dH

Description: Prionobrama filigera can reach up to 6 cm [...]

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Dermogenys pusillus (Wrestling Halfbeak)

Family: Hemiramphidae
Distribution: Dermogenys pusillus, better known as Wrestling Halfbeak, is found in Thailand, Indonesia, Myanmar, Bangladesh and India.  It is distributed in medium-large rivers and stagnant waters, particularly in areas that have floating plants.
PH: 7.0 – 8.0
Temperature: 24°C – 28°C (75 – 84F)
Hardness: 9 – 19 dH

Description: Dermogenys pusillus can reach up to [...]

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Dekeyseria pulcher (Butterfly Pleco)

Family: Loricariidae
Distribution: Dekeyseria pulcher, sometimes known as Butterfly Pleco, occurs in the Canal Casiquiare basin, and the Upper Negro and Orinoco Rivers. 
PH: 6.0 – 8.0
Temperature: 24°C – 28°C (75 – 84F)
Hardness: 5 – 19 dH

Description: Dekeyseria pulcher can reach up to 16 cm in length.  This striped species, with its main colours [...]

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Dasyloricaria filamentosa (Whiptail Catfish)

Family: Loricariidae
Distribution: Dasyloricaria filamentosa, known commonly as Whiptail Catfish, is a freshwater species distributed in the Magdalena River basin, in South America, and possibly in the Catatumbo River. 
PH: 5.0 – 7.0
Temperature: 24°C – 28°C (75 – 84F)
Hardness: 6 – 18 dH

Description: Dasyloricaria filamentosa can reach an impressive maximum length of 26 cm.  [...]

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Danio rerio (Zebra Danio)

Family: Cyprinidae
Distribution: Danio rerio, better known as Zebra Danio, is widely distributed throughout Asia.  It is found in Pakistan, Bangladesh, India, Myanmar and Nepal, and has been sighted in Columbia.  This annual species is found mostly in slow-moving bodies of water – rice-fields in particular – and in streams, ponds, ditches, and canals. 
PH: [...]

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Danio nigrofasciatus (Dwarf Danio)

Family: Cyprinidae
Distribution: Danio nigrofasciatus, better known as the Dwarf Danio, is a tiny freshwater species distributed in the rivers of northern Myanmar, Asia. 
PH: 6.5 – 7.0
Temperature: 24°C – 28°C (75 – 84F)
Hardness: 5 – 12 dH

Description: Danio nigrofasciatus is a small species that will reach a maximum length of 4 cm.  It [...]

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Danio kerri (Blue Danio)

Family: Cyprinidae
Distribution: Danio kerri, better known as the Blue Danio, is a freshwater species distributed in clear streams on the Malay Peninsula, Asia.  It can be found in open waters areas but also in heavily vegetated environments
PH: 6.5 – 7.0
Temperature: 23°C – 25°C (73 – 77F)
Hardness: 5 – 12 dH

Description: Danio kerri [...]

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Danio albolineatus (Pearl Danio)

Family: Cyprinidae
Distribution: Danio albolineatus, better known as the Pearl Danio, is a stream-dwelling Asian species distributed from Myanmar to Laos, and in Sumatra, Indonesia.  It has been seen in the Irrawaddy, Salween, Mekong, and Mae Khlong drainages.     
PH: 6.0 – 8.0
Temperature: 20°C – 25°C (68 – 77F)
Hardness: 5 – 19 dH

Description: Danio albolineatus [...]

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Cyrtocara moorii (Malawi Blue Dolphin)

Family: Cichlidae
Distribution: Cyrtocara moorii, known as either the Humphead or the Malawi Blue Dolphin, is a widely spread benthopelagic cichlid of Lake Malawi.     
PH: 7.0 – 9.0
Temperature: 24°C – 26°C (74 – 79F)
Hardness: 10 – 18 dH

Description: Cyrtocara moorii is a popular species that can reach a maximum length of around 20 cm. [...]

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Cyprichromis leptosoma

Family: Cichlidae
Distribution: Cyprichromis leptosoma is another Lake Tanganyikan cichlid, found between Tanzania’s Kigoma region and Mpulungu, Zambia.     
PH: 8.0 – 9.0
Temperature: 23°C – 25°C (72 – 76F)
Hardness: 9 – 19 dH

Description: Cyprichromis leptosoma can reach a maximum length of 11 cm. This species has a torpedo-like shape and is an excellent swimmer and [...]

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Cyphotilapia frontosa (Humphead Cichlid)

Family: Cichlidae
Distribution: Cyphotilapia frontosa, commonly known as the Humphead Cichlid, is endemic to Lake Tanganyika, Africa, where it is distributed in the northern part of the lake at depths of up to 50 metres.   
PH: 8.0 – 9.0
Temperature: 24°C – 26°C (75 – 79F)
Hardness: 8 – 12 dH

Description: Cyphotilapia frontosa can reach up [...]

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Crossocheilus siamensis (Siamese Algae-eater)

Family: Cyprinidae
Distribution: Crossocheilus siamensis, commonly known as the Siamese Algae-eater, inhabits lower areas of streams and rivers.  It is distributed throughout Asia, specifically in the Mekong, Xe Bangfai and Chao Phraya basins, and throughout the Malay Peninsula.
PH: 6.5 – 8.0
Temperature: 24°C – 26°C (75 – 79F)
Hardness: 5 – 20 dH

Description: Crossocheilus siamensis [...]

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Corynopoma riisei (Swordtail Characin)

Family: Characidae
Distribution: Corynopoma riisei, commonly known as the Swordtail Characin, is distributed in the coastal rivers and tributaries of Trinidad, north Venezuela, and within the Villavicencio area in Columbia.
PH: 6.0 – 8.0
Temperature: 22°C – 28°C (72 – 81F)
Hardness: 1 – 15 dH

Description: Corynopoma riisei can reach a maximum of 5 cm in an [...]

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Copella arnoldi (Splash Tetra)

Family: Lebiasinidae
Distribution: Copella arnoldi, commonly known as the Splash Tetra, is a South American freshwater species distributed near the banks of slow rivers with heavy vegetation.  It is found in the lower Amazon River, Guyana and the Rio Paru.
PH: 6.0 – 8.0
Temperature: 25°C – 29°C (77 – 84F)
Hardness: 5 – 12 dH

Description: Copella [...]

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Copeina guttata (Red-Spotted Tetra)

Family: Lebiasinidae
Distribution: Copeina guttata, or Red-Spotted Tetra, is a South American freshwater species distributed in the streams and rivers of the middle Amazon River basin.
PH: 6.5 – 7.5
Temperature: 23°C – 28°C (73 – 82F)
Hardness: 8 – 12 dH

Description: Copeina guttata can grow a maximum of 8 cm in a tank environment, although they [...]

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Cleithracara maronii (Keyhole Cichlid)

Family: Cichlidae
Distribution: Cleithracara maronii, better known as the Keyhole Cichlid, is a freshwater, creek-dwelling species distributed in the clear waters of Trinidad, the Orinoco River basin, and rivers from Guyana’s Barima River to French Guiana’s Ouanary River.
PH: 6.0 – 8.0
Temperature: 22°C – 25°C (72 – 77F)
Hardness: 3 – 20 dH

Description: Cleithracara maronii can [...]

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Colisa chuna (Honey Gourami)

Family: Osphronemidae
Distribution: Colisa chuna, known commonly as Honey Gourami, is an Asian freshwater species found mostly in pools, ponds and inundated fields.  It is distributed in the rivers and lakes of India and Bangladesh.
PH: 6.0 – 8.0
Temperature: 22°C – 28°C (72 – 82F)
Hardness: 5 – 19 dH

Description: Colisa chuna fish usually reach a [...]

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Colisa fasciata (Banded Gourami)

Family: Osphronemidae
Distribution: Colisa fasciata, better known as Banded Gourami, is an Asian freshwater species distributed in the Asian countries of India, Nepal, Pakistan,   Bangladesh and upper Myanmar.  It can usually be found in ponds, lakes, large rivers and estuaries; it has an affinity for weedy environments.
PH: 6.0 – 7.5
Temperature: 22°C – 28°C (72 – [...]

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Colisa labiosa (Thick-Lipped Gourami)

Family: Osphronemidae
Distribution: Colisa labiosa, better known as Thick-Lipped Gourami, is an Asian freshwater species with its origins in the shady waters of Burma and Indo-China.  This species is distributed mainly in the rivers of South Myanmar.
PH: 6.0 – 7.5
Temperature: 22°C – 28°C (72 – 82F)
Hardness: 4 – 10 dH

Description: Colisa labiosa can reach [...]

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Colisa lalia (Dwarf Gourami)

Family: Osphronemidae
Distribution: Colisa lalia, better known as Dwarf Gourami, is a popular freshwater species with its origins in Pakistan, Bangladesh and India.  This species likes to reside in vegetation-heavy lakes and slow streams.
PH: 6.0 – 8.0
Temperature: 25°C – 28°C (77 – 82F)
Hardness: 4 – 10 dH

Description: Colisa lalia can reach a maximum length [...]

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Chalinochromis brichardi (Brichard’s Chalinochromis)

Family: Cichlidae
Distribution: Chalinochromis brichardi, sometimes known as Brichard’s Chalinochromis, is an African cichlid endemic to Lake Tanganyika.
PH: 8.0 – 9.0
Temperature: 24°C – 27°C (75 – 81F)
Hardness: 9 – 19 dH

Description: This rubble-dwelling cichlid can reach a maximum length of 12 cm.  It has a black face with purple-blue fins and a longish body typical [...]

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Chalinochromis popelini

Family: Cichlidae
Distribution: Chalinochromis popelini is a middle-bottom dwelling African cichlid endemic to Lake Tanganyika.  Specifically, its type locality is in Moba, about two-thirds of the way down the southwest side of Lake Tanganyika.
PH: 7.5 – 9.0
Temperature: 22°C – 27°C (72 – 81F)
Hardness: 8 – 15 dH

Description: Chalinochromis popelini can grow to a maximum length [...]

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Chilodus punctatus (Spotted Headstander)

Family: Chilodontidae
Distribution: Chilodus punctatus, better known as the Spotted Headstander, is a freshwater species distributed throughout the Amazon River basin, Apeú River, Pará State, Suriname, Guyana, and the western Orinoco River basin.
PH: 6.0 – 7.0
Temperature: 24°C – 28°C (75 – 84F)
Hardness: 10 dH

Description: Chilodus punctatus can grow to a maximum length of 8 cm.  [...]

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Chilotilapia rhoadesii (Bream)

Family: Cichlidae
Distribution: Chilotilapia rhoadesii, better known as Bream, is an African freshwater cichlid, distributed in Lake Malawi over muddy bottoms in both shallow and deep waters.
PH: 7.5 – 8.5
Temperature: 23°C – 28°C (73 – 82F)
Hardness: 8 – 15 dH

Description: This Lake Malawian cichlid can reach an impressive 22 cm in length.  Adult males have [...]

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Chromobotia macracanthus (Clown Loach)

Family: Cobitidae
Distribution: Chromobotia macracanthus, better known as the Clown Loach, is a tropical freshwater species that has its origins in the inland waters of Sumatra and Borneo.
PH: 5.0 – 8.0
Temperature: 25°C – 30°C (77 – 86F)
Hardness: 5 – 12 dH

Description: The Clown Loach is a big, bold species that can reach an impressive [...]

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Carnegiella strigata (Marbled Hatchetfish)

Family: Gasteropelecidae
Distribution: Carnegiella schereri, better known as the Marbled Hatchetfish, is distributed in the upper middle levels of South America’s Amazon River basin; Columbia’s Caquetta River; and in Guyana, Peru, Suriname and Brazil.  It prefers to swim in places with plenty of surface vegetation, such as forest streams and tributaries.
PH: 5.0 – 8.0
Temperature: 24°C – [...]

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Carnegiella schereri (Dwarf Hatchetfish)

Family: Gasteropelecidae
Distribution: Carnegiella schereri, commonly known as the Dwarf Hatchetfish, is distributed in South America’s Amazon River basin in Peru and Brazil.
PH: 5.5 – 6.0
Temperature: 24°C – 27°C (75 – 81F)
Hardness: 2 – 15 dH

Description: Carnegiella myersi is a small species with a maximum length of 2.6 cm.  There is not a great deal [...]

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Carnegiella myersi (Pygmy Hatchetfish)

Family: Gasteropelecidae
Distribution: Carnegiella myersi, otherwise known as the Pygmy Hatchetfish, is distributed in South America, specifically the Amazon River basin in Peru, and in Bolivia.
PH: 5.5 – 6.5
Temperature: 23°C – 26°C (73 – 79F)
Hardness: 10 – 20 dH

Description: Carnegiella myersi is a small species with a maximum length of 2.2 cm.  It has a [...]

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Carnegiella marthae (Blackwing Hatchetfish)

Family: Gasteropelecidae
Distribution: Carnegiella marthae, otherwise known as the Blackwing Hatchetfish, is distributed in South America, specifically the Negro and upper Orinoco River basins.
PH: 5.5 – 6.5
Temperature: 23°C – 27°C (73 – 81F)
Hardness: 2 – 4 dH

Description: Carnegiella marthae is a small species with a maximum length of 2.8 cm.  It has a unique, slender [...]

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Chanda nama (Elongate Glass-Perchlet / Glassfish)

Family: Ambassidae
Distribution: Chanda nama, sometimes known as the Elongate Glass-Perchlet, is distributed in parts of Asia, including Pakistan, Bangladesh, Myanmar, Nepal and India.  It is most abundant during the rainy season, and is found mostly in clear streams, canals, ponds, and paddy fields.
PH: 7.5 – 8.5
Temperature: 24°C – 28°C (75 – 84F)
Hardness: 12 – 18 [...]

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Campylomormyrus rhynchophorus (Double-nosed Elephant Nose)

Family: Mormyridae
Distribution: Campylomormyrus rhynchophorus, otherwise known as the double-nosed Elephant Nose, is a species distributed in the affluent River Kasai, in Angola and the Democratic Republic of Congo.
PH: 5.0 – 7.5
Temperature: 22°C – 24°C (70 – 76F)
Hardness: 3 – 12 dH

Description: Campylomormyrus rhynchophorus can reach a maximum length of 22 cm.  This species, [...]

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Campylomormyrus cassaicus (Donkey-faced Elephant Nose)

Family: Mormyridae
Distribution: Campylomormyrus cassaicus, otherwise known as the Donkey-faced Elephant Nose, is a species distributed in the affluent River Kasai, in Angola and the Democratic Republic of Congo.
PH: 6.0 – 7.5
Temperature: 23°C – 28°C (73 – 82F)
Hardness: 3 – 12 dH

Description: Campylomormyrus cassaicus, a truly bizarre looking species, can reach a maximum length [...]

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Brycinus longipinnus (Longfin Tetra)

Family: Alestidae
Distribution: Brycinus longipinnus, commonly known as the Longfin Tetra, is a species distributed in big rivers – in the upper and lower reaches – and in estuarine zones; it is the only Brycinus species to reside in small streams and rivers.  It is found in Africa’s Atlantic border, from Gambia to the Democratic Republic [...]

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Brochis splendens (Emerald Catfish)

Family: Callichthyidae
Distribution: Brochis splendens, better known as the Emerald Catfish, is a species distributed mostly in sluggish, densely vegetated, muddy waters, in particular South America’s Amazon River basin.  It has origins in the Rio Tocatins, the Iquitos region, and Rio Napo.   
PH: 5.5 – 8.0
Temperature: 22°C – 28°C (72 – 82F)
Hardness: 2 – 30 [...]

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Brachygobius xanthosona (Bumble Bee Goby)

Family: Gobiidae
Distribution: Brachygobius xanthozona, better known as the Bumble Bee Goby, is a species distributed mostly in the estuaries of Asia, including parts of Western Indonesia, India, Thailand and South Vietnam.
PH: 7.5 – 8.5
Temperature: 24°C – 30°C (74 – 86F)
Hardness: 12 – 18 dH

Description: Brachygobius xanthozona will reach a maximum of 5 [...]

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Brachygobius nunus (Golden Banded Goby)

Family: Gobiidae
Distribution: Brachygobius nunus, known also as the Golden Banded Goby, is a species distributed throughout the mangroves, tidal creeks and estuaries of Asia.  It is found in parts of India, Myanmar, Thailand, Borneo, Indonesia and Malaya.
PH: 7.5 – 8.5
Temperature: 24°C – 30°C (74 – 86F)
Hardness: 10 – 24 dH

Description: Brachygobius nunus [...]

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Botia lohachata (Yoyo Loach/Pakistani Loach)

Family: Cobitidae
Distribution: Botia lohachata, known by many names but perhaps best as Yoyo Loach, is a species distributed throughout the north and northeastern parts of India, Bangladesh, Nepal and Pakistan.  It is found in creeks with rocky, gravel bottoms. 
PH: 6.0 – 8.0
Temperature: 24°C – 30°C (74 – 86F)
Hardness: 5 – 12 dH

Description: [...]

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Boraras maculatus (Dwarf Rasbora)

Family: Cyprinidae
Distribution: Boraras maculatus, or Dwarf Rasbora, is a tiny cyprinid species distributed throughout the forest streams of Asia, from the Malay Peninsula through to the Indonesian island of Sumatra.  It has been seen in Singapore’s Nee Soon Swamp, and in parts of the Greater Sunda Islands. 
PH: 5.0 – 6.0
Temperature: 24°C – 26°C [...]

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Boehlkea fredcochui (Cochu’s Blue Tetra)

Family: Characidae
Distribution: Boehlkea fredcochui, or Cochu’s Blue Tetra, is a species distributed throughout the rivers of South America, particularly Peru, Leticia, Rio Maranon. 
PH: 6.0 – 8.0
Temperature: 22°C – 26°C (72 – 79F)
Hardness: 5 – 12 dH

Description: Boehlkea fredcochui grow to around 4 cm in length and have a life expectancy of approximately [...]

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Benthochromius tricoti (Giant Featherfin Cichlid)

Family: Cichlidae
Distribution: Benthochromis tricoti is an African cichlid endemic to Lake Tanganyika; it lives in deep waters of up to 150 metres.
PH: 8.0 – 9.0
Temperature: 22°C – 24°C (73 – 77F)
Hardness: 8 – 14 dH
Description: Benthochromis tricoti can reach up to 30 cm in length, which makes it one of the great aquarium cichlids.  It [...]

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balantiocheilos melanopterus (Bala Shark/Silver Shark)

Family: Cyprinidae
Distribution: Balantiocheilos melanopterus, or Bala Shark, is distributed throughout the Mekong and Chao Phraya basins, the Malay Peninsula, and parts of Sumatra and Borneo.  It is found in mid-sized rivers and lakes at a mid-range depth.
PH: 6.0 – 8.0
Temperature: 22°C -28°C (70 – 82F)
Hardness: 5 – 12 dH
Description: Balantiocheilos melanopterus can reach the reasonable [...]

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Bagrichthys macracanthus (Black Lancer Catfish)

Family: Bagridae
Distribution: Bagrichthys macracanthus, more commonly known as Black Lancer Catfish, is found in the Greater Sunda Island Rivers, Thailand, and in Indonesia.  It mainly dwells in large, muddy rivers.
PH: 5.5 – 7.0
Temperature: 24°C -28°C (75 – 82F)
Hardness: 1 – 24 dH
Description: This Black Lancer Catfish differs from Bagrichthys hypselopterus in size, reaching 25 cm [...]

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Bagrichthys hypselopterus (Black Lancer Catfish)

Family: Bagridae
Distribution: Bagrichthys hypselopterus, more commonly known as Black Lancer Catfish, is found in the main rivers of Sumatra and Borneo.  It mainly dwells in deep waters with a swift current.
PH: 6.5 – 7.5
Temperature: 23°C -28°C (74 – 84F)
Hardness: 6 – 16 dH
Description: The Black Lancer Catfish measures a sizeable 40 cm in length.  It [...]

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Betta splendens (Siamese Fighting Fish)

Family: Osphronemidae
Distribution: Betta splendens, or Siamese Fighting Fish, is a well-known species distributed throughout Indonesia, Cambodia, Thailand, parts of China, and Vietnam, particularly in the Mekong basin.  It is typically found in floodplains, rice paddies and medium to large rivers.
PH: 6.0 – 8.0
Temperature: 24°C – 30°C (77 – 86F)
Hardness: 5 – 19 dH
Description: Betta splendens [...]

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Caridina sp. Malaya Shrimp

Family: Caridina
Distribution: Caridina sp., or Malaya Shrimp, is distributed in Malaysian waters.
PH: 6.5 – 8.0
Temperature: 22– 30°C (72 – 86°F)
Hardness: 2 – 5 dKH

Description:  Malaya Shrimp are new to the hobby and not a great deal is known about them in that sense, but this Caridina makes a visually appealing addition to any [...]

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Caridina cf. spongicola (Harlequin Shrimp)

Family: Caridina
Distribution: Caridina cf. spongicola, known best as Harlequin Shrimp, has its origins around the Indonesian Island Sulawesi, specifically in the Malili Lake system.
PH: 7.5 – 8.0
Temperature: 26– 29°C (78 – 84°F)
Hardness: 5 kH; gH 12

Description:  Harlequin shrimp are tiny and will reach a maximum size of 1.5 cm.  It is a mixture [...]

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Caridina cantonensis (Blue Tiger Shrimp)

Family: Caridina
Distribution: Caridina cf. cantonensis, or Blue Tiger Shrimp, have their origins in southern China.
PH: 6.5 – 7.5
Temperature: 15– 27°C (59 – 81°F)
Hardness: 3 – 6 dH (General Hardness); 1 – 2 dH (Carbonate Hardness)

Description:  Blue Tigers have only recently been introduced to the hobby.  This small shrimp, which reaches 3 cm in [...]

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Caridina sp. cantonensis (Black Tiger Shrimp)

Family: Caridina
Distribution: Caridina sp. cantonensis, or Black Tiger Shrimp, is selectively bred from the regular Tiger Shrimp.  They reportedly originate from Southeast Asia.
PH: 7.0 – 7.5
Temperature: 22– 24°C (71 – 74°F)
Hardness: 3 – 10 dKH

Description:  Black Tiger Shrimp males reach 2.5 cm in length; females are slightly longer.  There are two different types [...]

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Caridina sp. Dark Green Shrimp

Family: Caridina
Distribution: The Dark Green Shrimp has its origins in India.  Little is known about its specific distribution.
PH: 6.5 – 7.5
Temperature: 20– 28°C (68 – 82°F)
Hardness: 4 – 10 dH

Description:  The Dark Green Shrimp male will reach about 3 cm; females are slightly larger and fatter.  Females have a much darker green hue [...]

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Caridina sp. Cardinal Shrimp

Family: Caridina
Distribution: Caridina sp. –or Cardinal Shrimp – is distributed in the lakes of the Indonesian island of Sulawesi.
PH: 7.0 – 8.5
Temperature: 25– 29°C (78 – 85°F)
Hardness: 4 – 6 dH

Description:  The Cardinal Shrimp, just 2.5 cm in length, is a highly prized shrimp among experienced hobbyists.  It has either a dark rose [...]

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Caridina cf. Blue Bee Shrimp

Family: Caridina
Distribution: The Blue Bee Shrimp has its origins in the freshwater streams of China.  It was only introduced into the shrimp hobby in early 2008.
PH: 6.5 – 7.0
Temperature: 23– 25°C (74 – 78°F)
Hardness: 3 – 6 dH (General Hardness); 1 – 2 dH (Carbonate Hardness)

Description:  This species comes in an array of [...]

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Cambarellus patzcuarensis (Orange Dwarf Crayfish)

Family: Cambaridae
Distribution: The Dwarf Crayfish originates from Lago de Patzcuaro, Mexico.
PH: 6.5 – 8.5
Temperature: 10– 26°C (50 – 79°F)
Hardness: 12 – 15 GH

Description: Male Orange Dwarf crayfish will grow a whopping 4 cm in length; females will be slightly smaller.  It will show different tones of orange depending on the individual, and can [...]

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Cambarellus montezumae (Dwarf Crayfish)

Family: Cambaridae
Distribution: The Dwarf Crayfish originates from Mexico and is distributed around the Oaxaca region.
PH: 7.0 – 8.0
Temperature: 22– 24°C (72 – 75°F)
Hardness: 12 – 15 GH

Description: Cambarellus montezumae are short in length, measuring in at a maximum of 6 cm.  The Dwarf Crayfish has a number of regional colour variations.  After birth, [...]

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Cambarus coosae (Coosa Crayfish)

Family: Cambaridae
Distribution: The Coosa Crayfish is a North American species of crayfish distributed in the Coosa River system of Georgia, Tennessee and south into Alabama.
PH: 6.5 – 8.0
Temperature: 10 – 25°C (50 – 77°F)
Hardness: 5 – 15 dH

Description: Cambarus Coosae grow up to 7 – 8 cm in length and generally exhibit a [...]

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Atyoida pilipes (Green Lace Shrimp)

Family: Atayae
Distribution: Atyoida pilipes – or Green Lace Shrimp – is distributed through the Indo-pacific.  It is known in Indonesia, Philippines, New Guinea, Samoa and French Polynesia.
PH: 6.0 – 8.0
Temperature: 22 – 26°C (72 – 79°F)
Hardness: 5 – 15 GH

Description: Atyoida pilipes crustaceans have a typical shrimp shape and can vary from a [...]

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Atyopsis moluccensis (Asian Fan Shrimp)

Family: Atayae
Distribution: Atya gabonensis, a crustacean with several common names including the Asian Fan Shrimp, Singapore Shrimp, and Wood Shrimp, is distributed in the waters of Southeast Asia.
PH: 6.5 – 7.5
Temperature: 23 – 28°C (73 – 82°F)
Hardness: 12 – 18 dH

Description: Asian Fan Shrimp are approximately 12 cm in length.  They vary greatly [...]

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Atya gabonensis (African Filter Shrimp)

Family: Atayae
Distribution: Atya gabonensis is distributed around South America and West Africa, particularly the rivers and streams of Cameroon.  It has a variety of common names, including African Filter Shrimp and the Cameroun Fan Shrimp.
PH: 7.0
Temperature: 23 – 28°C (73 – 82°F)
Hardness: 5 – 18 dH

Description: Measuring in around the 15 cm mark, [...]

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Atyaephyra desmaresti (Freshwater Shrimp)

Family: Atayae
Distribution: Atyaephyra desmaresti is historically distributed from North Africa to Spain, Italy and Corsica, but has recently been seen in Holland, Austria and in the Danube.
PH: 7.0 – 8.5
Temperature: 25°C is ideal (77°F), but can exist in temperatures ranging anywhere from 2°C – 30°C (35.6 – 86°F)
Hardness: 5 – 20 GH

Description: The [...]

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Caridina sp. Orange Delight

Family: Caridina
Distribution: Caridina sp., or Malaya Shrimp, is another dwarf shrimp distributed in the lakes of the Indonesian island of Sulawesi.
PH: 7.0 – 8.5
Temperature: 26– 30°C (78 – 85°F)
Hardness: 4 – 6 dH

Description:  The Orange Delight Shrimp gets its name from its unique bright orange colouration.  It is covered in white dots and [...]

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Aulonocara trematocephalum

Family: Cichlidae
Distribution: Aulonocara trematocephalum has been recorded in Lake Malawi, Africa.  The exact location of this species is as yet unknown.
PH: 7.5 – 9.0
Temperature: 23 – 28°C (73 – 82°F)
Hardness: 6 – 18 dH

Description: Aulonocara trematocephalum, native to Lake Malawi, reach a maximum length of 9 cm.  Not a great deal is known [...]

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Aulonocara stonemani (Placidochromis stonemani)

Family: Cichlidae
Distribution: Aulonocara stonemani cichlids are distributed in the southeast and southwest arms of Lake Malawi, Africa, and Monkey Bay.
PH: 7.5 – 9.0
Temperature: 26 – 28°C (78 – 82°F)
Hardness: 20 – 30 dH

Description: This African cichlid is on the smaller scale at 5.5 cm in length.  It has not been exported in [...]

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Aulonocara saulosi (Pale Usisya Aulonocara)

Family: Cichlidae
Distribution: The Aulonocara saulosi cichlid, sometimes known as the Pale Usisya Aulonocara, is found in Lake Malawi, Africa, occurring near Kande Island.
PH: 7.5 – 9.0
Temperature: 23 – 28°C (73 – 82°F)
Hardness: 8 – 25 dKH

Description: Aulonocara steveni is one of the smaller Peacock cichlids, reaching around 9 cm in length.  The males [...]

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Aulonocara saulosi (Emerald Face Cichlid/Green Face Aulonocara)

Family: Cichlidae
Distribution: Aulonocara saulosi cichlids, sometimes called the Emerald Face or Green Face Cichlid, is found in Lake Malawi.  It is distributed south of the Mozambique border near Masinje, on the eastern shore.
PH: 8.0 – 9.0
Temperature: 22 – 26°C (72 – 79°F)
Hardness: 15 – 30 dH

Description: The Emerald Face Cichlid reaches a maximum [...]

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Aulonocara rostratum (Longnose Aulonocara)

Family: Cichlidae
Distribution: Aulonocara rostratum cichlids are distributed in Lake Malawi, Africa.  They have been known around Karonga, Vua, and Monkey Bay.
PH: 7.5 – 8.5
Temperature: 24 – 26°C (75 – 79°F)
Hardness: 5 – 30 dH

Description: Reaching up to 18 cm in length, Aulonocara rostratum has the honour of being the largest Aulonocara.  It has [...]

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Aulonocara macrochir (Chisawasawa)

Family: Cichlidae
Distribution: Aulonocara macrochir, sometimes called Chisawasawa, is an African cichlid found in Lake Malawi.
PH: 7.5 – 9.0
Temperature: 22 – 27°C (72 – 80°F)
Hardness: 10 – 15 dH

Description: Aulonocara macrochir cichlids can reach up to 15 cm in length.  Adult males have a metallic shade containing several different colours, particularly blue and green.  [...]

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Aulonocara korneliae (Blue-gold Peacock Cichlid)

Family: Cichlidae
Distribution: The Aulonocara korneliae is a Lake Malawian cichlid which is widely distributed around Chisumulu Island.
PH: 7.5 – 8.0
Temperature: 22°C – 26°C (71°F – 79°F)
Hardness: 9 – 15 dH

Description: Aulonocara korneliae cichlids can reach up to 9 cm in length; males are more colourful than females.  The male Blue-gold Peacock has [...]

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Aulonocara koningsi

Family: Cichlidae
Distribution: Aulonocara koningsi cichlids are distributed in Lake Malawi and off Mbenji Island, Africa.
PH: 8.0 – 9.0
Temperature: 25 – 27°C (78 – 82°F)
Hardness: 25 – 30 dH

Description: Aulonocara koningsi have a relatively large head and a rounded dorsal profile.  Males have a blue body, head and fins; a caudal fin with yellow [...]

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Aulonocara guentheri

Family: Cichlidae
Distribution: Aulonocara guentheri is a freshwater cichlid native to Lake Malawi and Lake Malombe, Africa.  It has also been observed at Senga Bay.
PH: 7.0 – 9.0
Temperature: 23 – 28°C (73 – 82°F)
Hardness: 25 – 30 dH

Description: Male Aulonocara guentheri can reach up to 15 cm; females up to 14 cm in length.  [...]

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Aulonocara ethelwynnae

Aulonocara ethelwynnae

Family: Cichlidae
Distribution: The Aulonocara ethelwynnae is a species of dwarf cichlid distributed around Malawi, particularly off Chitende Island.
PH: 7.5 – 8.0
Temperature: 22 – 26°C (72 – 79°F)
Hardness: 14 – 28 dGH

Description: The Aulonocara ethelwynnae cichlid, sometimes called the Chitende Cichlid, can grow up to 8 cm in length in an aquarium.  [...]

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Aulonocara brevirostre

Family: Cichlidae
Distribution: The Aulonocara brevirostre is a species of dwarf cichlid distributed in the southern part of Lake Malawi.
PH: To mirror the conditions of Lake Malawi, keep pH levels around the 8.0 – 8.5 mark.
Temperature: 26-29°C (79-84°F)
Hardness: Most Aulonocaras suit a hardness of 10 – 18 dH

Description: Male Aulonocara brevirostre cichlids usually grow [...]

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Aulonocara aquilonium

Family: Cichlidae
Distribution: The Aulonocara aquilonium species is distributed at a depth range of 12 – 25 metres in Lake Malawi, Africa, and are found in sandy areas.
PH: 7.5 – 9.0
Temperature: 25°C – 28°C (78°F – 82°F)
Hardness: 10 – 30 dH
Description: Adult males have a distinctive dorsal fin colouration with a black margin and [...]

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Apistogramma velifera

Family: Cichlidae
Distribution: Apistogramma velifera is a South American dwarf cichlid, distributed in Venezuela’s Orinoco River system.
PH: 5.5 – 6.5
Temperature: 23°C – 30°C (73°F – 86°F)
Hardness: > 5 dH
Description: There is not much documentation on this species as yet.
Diet: A high quality flake is recommended as part of the Apistogramma velifera’s diet.  Offer blood worms [...]

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Apistogramma urteagai

Family: Cichlidae
Distribution: Apistogramma urteagai, a South American dwarf cichlid, can be found in the Madre de Dios basin of the Amazon River basin, Peru.
PH: 5.0 – 6.0
Temperature: 22°C – 29°C (71°F – 84°F)
Hardness: 6 – 10 dH
Description: Apistogramma urteagai males can reach 4.1 cm in length.
Diet: Most Apistos can be fed small, live foods [...]

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Apistogramma staecki

Apistogramma staecki

Family: Cichlidae
Distribution: This South American dwarf cichid is found in the Amazon River basin, in the Mamoré and Guaporé River basins.
PH: 6 – 6.5
Temperature: 24°C – 28°C (75°F – 82°F)
Hardness: 2 – 5 dH
Description: Apistogramma staecki males grow to a length of 2.1 cm, while females can reach almost double the size at [...]

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Apistogramma similis

Apistogramma similis

Family: Cichlidae
Distribution: Apistogramma similis is distributed in Bolivia, South America.
PH: 5.5 – 6.5
Temperature: 22 – 30°C (72 – 86°F)
Hardness: 9 – 18 gDH
Description: There is little documented on this species.
Diet: This species should be fed a typical diet of live food, pellets and flake.
Breeding: Apistogramma similis, while not a great deal is known [...]

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Apistogramma Salpinction

Apistogramma Salpinction

Family: Cichlidae
Distribution: Apistogramma Salpinction is a new species, discovered in 2005, that is found in Brazil, South America
PH: 6 – 6.5
Temperature: 24°C – 28°C (75°F – 82°F)
Hardness: 2 – 5 dH
Description: This species of Apistogramma differs in its colour pattern. Darker abdominal stripes and a lateral band, along with lighter interspaces on the [...]

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Apistogramma Rupununi (Two-spot Apistogramma)

Family: Cichlidae
Distribution: Apistogramma Rupununi is found in South America and parts of the West Indies: the Branco River, the Amazon River basin and Guyana’s Rupununi River basin, from which it derives its name.
PH: 5.5 – 6.5
Temperature: 22 – 30°C (72 – 86°F)
Hardness: 9 – 18 gDH
Description: Male Two-spot Apistogrammas can grow up to 3.8 cms [...]

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Apistogramma Rubrolineata

Apistogramma Rubrolineata

Family: Cichlidae
Distribution: Apistogramma Rubrolineata is distributed throughout the deep to middle waters of South America, particularly the Rio Manuripi in Bolivia.
PH: 5.5 – 6.5
Temperature: 22 – 30°C (72 – 86°F)
Hardness: 9 – 18 gDH
Description: This species has a very distinctive colour pattern that distinguishes it from other apistos.  The Apistogramma Rubrolineata’s horizontal [...]

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Apistogramma Rositae

Family: Cichlidae
Distribution: Apistogramma Rositae, a dwarf cichlid, is found in South America.  They are most prevalent in north-western Peru.
PH: < 6
Temperature: approximately 25°C (77°F)
Hardness: 3 – 18 dGH
Description: The Apistogramma Rositae will reach a maximum of 4 cm in length.  It is a tiny, intricately designed fish which has 15 – 17 dorsal fins, 5 [...]

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Aulonocara brevinidus

Family: Cichlidae
Distribution: The Aulonocara brevinidus is a species of dwarf cichlid found in Nkhomo Reef, Malawi; parts of Mozambique; and Lupingu and Manda, Tanzania.
PH: It is advised to keep the waters similar to that of Lake Malawi, around the 8.0 – 9.0 mark.
Temperature: 26-29°C (79-84°F)
Hardness: Most Aulonocaras suit a hardness of 10 – 30 [...]

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Aulonocara auditor (Kapesa)

Family: Cichlidae
Distribution: The Aulonocara auditor, or Kapesa, is a sand-dwelling cichlid that can be found in Lake Malawi.  At present it is known to be present only in the northern part between Ngara and Vua.
PH: 7.8 – 8.6
Temperature: 25°C – 28°C (78°F – 82°F)
Hardness: 15 – 30 dH

Description: The Aulonocara auditor has three [...]

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Aulonocara aquilonium

Family: Cichlidae
Distribution: The Aulonocara aquilonium species is distributed at a depth range of 12 – 25 metres in Lake Malawi, Africa, and are found in sandy areas.
PH: 7.8 – 8.6
Temperature: 25°C – 28°C (78°F – 82°F)
Hardness: 20 – 30 dH
Description: Adult males have a distinctive dorsal fin colouration with a black margin and [...]

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Apistogramma Tucurui

Family: Cichlidae
Distribution: Apistogramma tucurui is a dwarf cichlid found in South America, specifically Brazil’s Rio Tocantins’ basin.
PH: An ideal level lies between 5.5 – 6.5.
Temperature: Most Apistogramma species can be housed in temperatures between 75 – 80°F (24 – 26°C)
Hardness: This cichlid has been successfully bred in water hardness as high as 10 dGH.
Description: Apistogramma [...]

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Apistogramma Trifasciata (Three-Striped Dwarf Cichlid)

Family: Cichlidae
Distribution: Apistogramma trifasciata is distributed throughout South American waters: the Paraguay River drainage, Brazil’s Guaporé River, and the middle Paraná River drainage in Argentina.
PH: 6 – 6.5 pH
Temperature: 26 – 29°C (79 – 84 F)
Hardness: 2 – 5 dH
Description: The Three-Striped Dwarf Cichlid is a strikingly colourful Apisto.  Males can be identified easily [...]

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Apistogramma uaupesi

Family: Cichlidae
Distribution: Apistogramma uaupesi is a South American cichlid distributed in the Uaupes River and the Negro River basin of the Amazon River basin, Brazil.
PH: 4.0 – 5.0
Temperature: 26°C – 29°C (79°F – 84°F)
Hardness: Very soft.
Description: Apistogramma uaupesi are approximately 2.8 cm (males) and 6 cm (females) in length.  This species will flick their [...]

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Corydoras haraldschultzi (Schultz’s Corydoras)

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Corydoras concolor (Slate Corydoras)

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Corydoras sterbai (Sterba’s Corydoras)

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Corydoras metae (Masked Corydoras or Bandit Corydoras)

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Corydoras melanistius (Bluespotted Corydoras)

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Corydoras trilineatus (Three-lined Corydoras)

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Corydoras schwartzi (Schwartz’s Corydoras)

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Corydoras julii (Leopard Corydoras)

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Corydoras panda (Panda Corydoras)

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Corydoras paleatus (Peppered Corydoras)

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