Bicolor Chromis Just Hanging Out?

[Ross]

[quote=infamous;575529]I just picked up a few Bicolor Chromis today, acclimated them appropriately, and put them in my tank. Two of them are doing just fine, but the third one is just hanging out in the back of the tank, not seeming to do very well. He seems to just kind of hover for a bit, and then float on his side until he almost gets to the top and then come back down and hover again. He looks physically healthy (although his back fin looks nipped...
[quote]

I had a bicolor do that also.
Every time I watched the tank from a distance, the other ones would attack it if it moved.
It died shortly there after...

So naturally I replaced it with another one, and now they have been fine for 3 months or so.