francis
Aquarium Advice Freak
i had some on live rock and i just took out the rock and put it in some really hot water and killed it off like that but i had no coral or anything
yeah I saw a very small one on a piece or live rock that would retract into a hole whenever i tried to get him. Took the rock out and ran him under boiling water, havent seen the sucker since.
If its in a large rock that you can't take out easily, I've heard you can inject boiling hot water with a syringe while in the tank. just dont get trigger happy and spray other things