Clownfishes, which live among the stinging tentacles of sea anemones, are also members of this family. Movement is slow except when attacking prey with remarkable speed. All groupers are carnivorous, feeding on invertebrates and other fish. Like wrasse and parrotfish, some start out as females and become males later while others are hermaphroditic. They have large protruding eyes which are raised above the level of the head and powerful jaws which enable them to snatch prey and dart back to safety.
Gobies are among the most successful reef families, with literally hundreds of species.
In fact new species of these small, secretive fish are being discovered all the time. This ancient species of fish have gained their undeserved reputation for ferocity largely because, as they breathe, they open and close the mouth to reveal their numerous sharp teeth. They do not have fins or scales. Moray Eels anchor the rear portion of their bodies in a selected coral crevice and stay hidden during the day. They emerge at night to feed on shrimp, octopuses and mussels.