Damsel evil Damsel! Only fish I have had that killed other fish, even other damsels. Never, ever again. I had a beautiful keyhole angel that developed a taste for feather dusters, he ate every single one in a 55 gallon tank and almost starved to death before I got him to start taking other foods again. But I would have one again, beautiful and interesting fish. I would think more than once about putting one on a reef tho.