Neolamprologus crassus is a species of cichlid endemic to Lake Tanganyika where it can be found in the southwestern part of the lake, in the waters of the Democratic Republic of the Congo. This species can reach a length of 7cm (03inches) TL. The type location is the Bay of Luhanga, Democratic Republic of Congo, western coast of Lake Tanganyika.[1] It can also be found in the aquarium trade. Some authorities regard this taxon as a synonym of Neolamprologus pulcher.