How long have you had your bubble anomone? He doesn't look to good, but he doesn't look like he's falling apart. keep a close eye on him, and don't let him die in there. Is he upside down? if you touch his foot to a rock will he start to grab hold. tell us more about your setup, lights, filteration system, tank levels, etc. and as always more pic's. hope me makes it.
Fishman