Monodactylus sebae, the African moony, is a species of moonyfish native to fresh, brackish and marine waters from the eastern Atlantic, ranging from the Canary Islands down to Angola. It inhabits mangrove swamps and estuaries and can occasionally be found in lagoons. This species can reach a length of 25cm (10inches) TL though most do not exceed 15cm (06inches). It can also be found in the aquarium trade.
This species is quite widely kept in brackish and saltwater water aquaria; although it has only very rarely been bred in captivity, it is otherwise hardy and easy to care for.