I've had my mystery snail since June and there have been plants in the tank since before I got him. I make sure to stick an algae wafer or a shrimp pellet in the tank every other day so he gets enough to eat. Yesterday I received a new banana plant and I plopped it in the tank. I noticed a few jagged edges when I checked the tank this morning. A few minutes ago, my snail spent some time on one of the leaves. Now I know he wasn't munching on the algae and was actually devouring the leaf itself. Why would he do this to the banana plant and not the anubias that have been in the tank since he was introduced?