hi there i have a large golden apple snail who is known by doc snail lol dont ask me why

, i was wondering if anyone has had a problem with apple snails eating their plants? he is the only snail in the tank as i took the pond snail out and put him into the fry tank so hes not the culprit. my java fern especially is looking a bit ragged and i think ol doc is the culprit. does anyone else think this is a possibility? im very fond of him and i love the wayi can watch him on the glass and the way he comes to the top of the tank to collect the flakes i feed the fish with. maybe i should move him into the fry tank aswell? its a 16litre but i wont be able to watch him as much as in the main tank.