Good question lol Rabbit fish, I've saw some around 12"+ plus and they are really nice,just don't see often. Hmmm have to put my thinking cap on for this. Angels but definitely a risk, I wouldn't recommend it but I know a few guys on here have success. I mean you can do groupers,lions,jacks and other predatory fish with coral,may knock stuff down but won't eat it,just can't have any small fish and inverts with them.