Some species use the rocks crevices and overhangs. Some will retreat into a stony structure they build themselves. Some use fish, other crustaceans and sand.
In corals
Rocks and corals.
Corals are very important because they provide food and shelter for fish
corals
They make protection from sharks ,for shelter, and food
soft corals live deeper water than hard corals because soft corals do not create a hard outer skeleton as the hard corals do.
Corals are plants.
Corals are not decomposers. They are consumers.
Hermatypic corals contain zooxanthellae (a symbiotic algae), whereas ahermatypic corals do not. It is like saying that hermatypic corals are photosynthetic, where ahermatypic corals are non photosynthetic.
No, corals are not edible.
Yes, corals are composed of an exoskeleton
dynamite fishing and muro ami can destroy corals so if there are less corals, less corals will be produced.