I have a Fishers angle in mine and absolutely love him. He doesnt bother any corals and is real active. Eats anything i put in the tank. I will tell you my past experiences for info. In the past, I have had a couple of cherubs----very dominant and aggressive!!! Everyone told me that if you add an angel fish, it must be the last fish added to the tank. I would totally agree with that. Once he gets settled in, he runs the show. He can be cool with the other fish that were previously there, but if you add someone new later, he's on him fast!!! So i had to trade my angels in. I had to do that more than once. Now i have a cool crew and everybody gets along, and no harm to corals or anything. I guess i got lucky.