I've had just about every angel listed here, and all but one were model citizens. Here is the problem, that one, was the last angel I have ever put in my tank. It was a beautiful flame back that I had for years without any incidents...and then one day all that changed. It took me a week to catch him, I literally caught every other fish in the tank and kept removing them until it was the last one left. I will probably never own one again, to spend $50 on a fish and possibly have it munch on $1000s in coral is not something I'm interested in experimenting with...