Heterobranchus longifilis

Widespread throughout the African continent.

It inhabits deep water, including rivers, lakes and ponds.

180 ∗ 60 ∗ 60 cm72 ∗ 24 ∗ 24 in - ~648 litres~171 US gal absolute minimum. Although the maximum recorded size is unlikely to be attained this fish will still grow very large in the aquarium and it may outgrow the tank suggested here so be prepared to upgrade if necessary.

Decor is not critical. Bearing in mind the adult size of this fish an undecorated tank with a soft substrate is probably the best option. It could also be kept in a suitably-sized tropical pond. Filtration should be very efficient as it produces a lot of waste.

Temperature: 20 – 27 °C68 – 81 °F, but aim for the upper end of this range.

pH: 5.5-7.5

Hardness: 3-20°H

A greedy and omnivorous species that will eat almost anything offered. A varied mixture of dried pellets, meaty frozen foods and vegetable matter is recommended. Adult specimens do not need to be fed every day. Take care not to overfeed as this is one fish that just doesn't know when to stop eating!

Highly predatory and should be kept alone. It will consume any fish it can fit in its mouth, and will often attack larger tankmates as well.

Females are thicker-bodied than males.

Has been bred in aquaria for experimental purposes via hormone injection, but a breeding project is surely beyond the scope of the hobbyist.

One of the largest freshwater fish species found in Africa, this is not a very good aquarium inhabitant. It is suitable only for the truly dedicated hobbyist able to house it properly or for public aquaria. It can be distinguished from similar members of the genus by its very long adipose fin.