This snail generally won't cause any harm, but can eventually reproduce like wildfire. If you start to have an overpopulation and the snails start to die under the substrate and stink up the tank (it happens), then you can control their population by placing a piece of standard lettuce on the side of the tank overnight. The snails will attach to the lettuce, then you just dispose of it in the morning.
If they never cause an overpopulation problem, I would just assume leave him be. Snails are great for cleaning up excess food and things of that nature.