You have a little carnivore on your hands, he will eat you out
of reef and home. I have wittnessed one actually pry a clam open and eat it. He will plow over your mushrooms (or anything else for that matter). We love our guy (chip) because he is very entertaining, BUT we don't have any corals. Put him in a different tank if you have one, like I said, they are fun and climb to the top of the tank and stretch out as if to sun himself. Very busy little creatures.