I just had to tear apart my entire reef a few weeks ago to catch my flame. It took a liking to my xenia colonies. It almost destroyed one coloney all together. I also saw it nip at my hahiry mushrooms and zoos. None of the angels are considered reef safe. It is realy a gamble to see if you get one that likes corals or not. I do think eventually, you will have a problem. Even if the fish is just nipping at the corals and not really harming them, they wil have tendecy to stay closed up and not thrive. If it were me, I would skip it. Just too much work and stress.