Well they may nip at the corals nothing is garnetied, but they shouldn't, they would only likely do it if they arent being fed enough. Their diet consists of , shrimp, small fish (Which really means fish up to a 1/3 its size) and the occational clam, snale or crab, corals not usualy on the list, the fish that go for corals tend to have "beak" like mouths like triggers or filefish.
Personaly if you have the money, or the time/patience to culture, its not a bad idea to keep a number of live feeder shrimp in the tank at all times, as they will clean detritus, and will provide a snack for the lion when he feels the need to eat, the only problem is that with live around they may not want to eat frozen or dried any more haha.
Personaly if you have the money, or the time/patience to culture, its not a bad idea to keep a number of live feeder shrimp in the tank at all times, as they will clean detritus, and will provide a snack for the lion when he feels the need to eat, the only problem is that with live around they may not want to eat frozen or dried any more haha.