Clownfish: Clownfish, anemonefish, and other fish of the family Pomacentridae are members of the subfamily Amphiprioninae. There are 28 species, with one belonging to the genus Premnas and the rest in the Amphiprion genus. In the wild they form symbiotic relations with sea anemones. Depending on their species, clownfish can be yellow, orange or reddish. Some have white patches or bars.