I overheard my tangs and angels talking the other day. pB tang said, are you guys bored. Multiple reply’s, Yes! PB said, let’s all go chase the Chromis! And so it is in my tank. I’ve got 6 chromis and for about five months they all schooled together. Not any more. All the big fish seem to love chasing them. The Chromis usually stay out of sight in the rock structure. They all come out at feeding time, but stay hidden the rest of the day.