You should be able to get a handheld nuclear bomb for that snail. Or, if you go old school, be careful as dropping an anvil on it can break the tank glass. The same is true of gunfire, Thor's hammer strikes or road drills.
People say they aerate the gravel, I suspect with the gases released as they breed like rats and then decompose all over your tank.
If you let it go, later you can use natural controls like river otters.
No problem.