I have a school of chromis that I inherited and wasn't too excited about but they have turned out to be really gorgeous and quite fun. They do this funny, hide and sneak out thing I like, their color is damn beautiful and I have to admit I am sold! I have 8 together with no problems so far (about 5 weeks). They have a jewled yellow tailed damsel with them and she pretends to be part of the school sometimes which is cool as she's about the same size at the moment and dark bodied with bright blue spots.