Lamprologus ocellatus is a species of shell dwelling cichlid endemic to Lake Tanganyika. It is a popular aquarium fish due to its small size, appearance, and intelligence. Juveniles measure about 6 millimetres (0.24 in) at hatching, while adults grow up to 5.8 centimetres (2.3 in) TL. They range in color from a light brownish color to a gold/yellow color. These fish, like all shell dwellers, live in snail shells. They live in colonies amongst each other and raise their young in the shells. Male Lamprologus ocellatus are larger, and have a yellow edge on the dorsal fin.