The friendliest place on the web for anyone with an interest in aquariums or fish keeping!
If you have answers, please help by responding to the unanswered posts.
i have never seen a pleco get GSA off. Snails are pretty much the only thing that can lick that clean. But if you have any loaches of cichlids you cant get snails. You just need to scrap if off. If it is a glass aquarium just use a razor ver easy.