Wow, that's really a bummer to keep a fish that long and then after so long it develop such bad habbit! I think they become more and more vegetarian with age...could it be lacking veggie? I know it's not very good to give this to fish but just to distract it from the polyp, maybe some romaine lettuce could do it? I read tang really love that stuff although it is low in nutrition, it could help in this case?

ok I have tried everything.. she will not stop picking. she completely wiped out 3 colonies of zoas... any other suggestions? if she hasn't stopped by the new year (or if she goes near any of my favorites) I think she might have to go :(