What coral live in the coral reef?

Answer 1

There are many to be named but mainly coals like the Brain coral or stylasterine coral are all corals the helps build coral reefs and also coral-like animals as in the the red coral (Corallium), the organ-pipe coral (Tubipora), etc.

Answer 2

Fish, coral, sponges, shrimp, lobsters, crabs, anemones, bivavles, snails, octopus, starfish, sea lillies, urchins, and many many more.