<Li> <P> Relatively defenceless parrotfish feed on algae . </P> </Li> <P> Relatively defenceless parrotfish feed on algae . </P> <Li> <P> Ferocious barracuda prey in schools on parrotfish . </P> </Li> <P> Ferocious barracuda prey in schools on parrotfish . </P>

Types of fish that live in coral reefs