There are at least 30 known species of clownfish, most of which live in the shallow waters of the Indian Ocean, the Red Sea, and the western Pacific. They are not found in the Caribbean, Mediterranean, or Atlantic Ocean. Changing Sex. Surprisingly, all clownfish are born male.
Clownfish lay their eggs in batches on coral, rock or next to the sea anemone that they call home. The male clownfish will build a nest on the rock or coral near the anemone in order to be provided with protection from predators. Breeding starts by the male chasing the female to the nest where the eggs are released.