African Black Knifefish (Xenomystus nigri)


The African Black Knifefish is a widespread, medium-growing species found in freshwater streams and swamps throughout much of West and Central Africa. Unlike many other knifefish species, it is a social fish that is typically found in schools and should be kept in groups in the aquarium. The African Black Knifefish is a peaceful species and will generally get along well with all tankmates too large to be prey. In the wild, they are found in a wide variety of habitat types but show a preference for slower-moving shallow waters with plenty of cover in the form of submerged branches or aquatic vegetation.


African Black Knifefish (Xenomystus nigri)

Origin: Wild West Africa
Locale: Lower Niger River Basin
Diet: Carnivore and predator. Will usually accept protein rich frozen foods like bloodworms or mysis shrimp.
Adult Size: 9″+
Recommended Tank Size: 75 gallon+
Compatibility: Peaceful for a knifefish, and one of the few species that prefers to be kept in groups

Preferred Water Parameters
pH:                          6.5 – 7.6
Temp:                     76-82F
Ammonia:              0ppm
Nitrite:                    0ppm
Nitrate:                  <30ppm