#ed_op#DIV#ed_cl#Hey guys-- There is a lab downstairs from my lab that studies sea urchins-- in this one tank they have a damselfish, a blue dot puffer, and a yellow tang-- with about 7 huge sea urchins-- pin cushion?-- anyways the yellow tang is chewed up-- They adopted this fish from an office upstairs-- but they say the fins are not getting better . . . any ideas? The damsel is small and the tang is of good size-- I don't think the puffer, or the damsel are doing it- right?- you think parasite? #ed_op#/DIV#ed_cl#