''Pseudosimochromis marginatus'' is a species of

cichlid Cichlids are fish from the family Cichlidae in the order Cichliformes. Cichlids were traditionally classed in a suborder, the Labroidei, along with the wrasses ( Labridae), in the order Perciformes, but molecular studies have contradicted this ...

endemic to

Lake Tanganyika Lake Tanganyika () is an African Great Lake. It is the second-oldest freshwater lake in the world, the second-largest by volume, and the second-deepest, in all cases after Lake Baikal in Siberia. It is the world's longest freshwater lake. ...

in East Africa. It prefers shallow waters with rock rubble substrates. It can reach a length of TL. It can also be found in the

aquarium An aquarium (plural: ''aquariums'' or ''aquaria'') is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aq ...

trade.

References

marginatus Fish of the Democratic Republic of the Congo Endemic fauna of the Democratic Republic of the Congo Fish of Lake Tanganyika Cichlid fish of Africa Fish described in 1956 Taxa named by Max Poll Taxonomy articles created by Polbot Taxobox binomials not recognized by IUCN {{Cichlidae-stub