I'm asking this question for a friend, who is currently w/out a computer. She was considering adding a juvenile clown trigger (1"-2") to her 90G reef, but first wanted to make sure it wouldn't destroy everything. The tank has brain coral, mushroom, a few different types of zoos, featherduster, torch coral and a starfish that a flame angel has developed a taste for already, and a cleaner shrimp. I told her the cleaner shrimp would probably not make it with the trigger, but what about the corals or the shrimp? do triggers eat corals??