Nile tilapia (Oreochromis niloticus) The Nile tilapia is a member of the cichlid and tilapia family. It has a deep-bodied, compressed shape. This species is bronze to brownish-grey dorsally and laterally and white ventrically. It has a truncated caudal fin that has many thin black bands and a pinkish-red posterior margin. Nile tilapia have a small mouth with bicuspid jaw teeth and between two and three small inner rows. Breeding males develop a pinkish-red flush on the body and a black edge on the dorsal fin. The black “tilapia spot” is present anteriorly on the dorsal fin, and is most prominent on juveniles. Nile tilapia can be found in canals, creeks, rivers and lakes, usually with aquatic vegetation.