even if it kills all internal worms, it wont kill all internal parasite.
look into hexamita, one of the or main causes to wasting disease. if you suspect your fish is losing weight. it is best treated with metrodinazole. if you want some, i could spare you a portion of mine but i hope you won't get to use it. roseafascia is really hard to come by. furthermore, its really fated for you to own it on such an extraordinary event. keep it healthy and kicking.
thats good news to wrasse lovers. paging for Edwin