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 can reach a maximum length of 9 cm in an aquarium. It has a convex body, small ventral fins and a straight back. It is mostly of a silver-white colouration, but its back is olive-brown; it has a green to yellow stripe that extends vertically from its gills down to the base of its tail.
Diet: Thoracocharax securis is a big fan of live foods and can be given glass worms, Daphnia, brine shrimp, bloodworms, mosquito larvae and flake foods.
Breeding: There is no evidence that this species has spawned in captivity as yet; all breeding attempts to date have been unsuccessful.
Comments: Thoracocharax securis should be housed in a 20 gallon tank. This species will require a solid supply of air. Decorate your tank as you would for any other types of Hatchetfish; this may include hiding spaces, softer water conditions and plenty of plants, as well as a tightly fitted lid to prevent this jumper from escaping the tank. This relatively hardy fish requires a moderate level of care and is better suited to experienced hobbyists.
Article/Books:
Recommended Compatible Species: This peaceful shoaling fish should be kept in groups of three or more, and not with aggressive species. They will live happily with Tetra species (particularly the Neon Tetraand Black Tetra). They are also great tank mates with Discus, Apistogramma‘s like Apistogramma Cacatouides and Apistogramma Borelli, CorydorasCatfish (particularly Corydoras Sterbaiand Corydoras aeneus) Angelfish, Clown loach, the common Guppyand Platyand most Gourami(such as the Blue Gourami and Dwarf Gourami like the Honey Gourami) Also can live happily with most Danio(particularly the Zebra Danioand Pearl Danio) and also many Killifish make great tank mates.
