Wouldn't the boiling water kill the bacteria in the tank as well? And yes, snails are cool.SurWrathful said:Go the extreme way and pour boiling water into the tank. Of course, you need to remove everything you want to keep first! Plants, fish, shrimps, etc... Once you pour the hot water, stir the gravels to distribute the scorching heat. This should kill most if not all the snails pestering in your tank. I used to do this, but now I don't. I've come to appreciate snails as an integral part of this whole mini-ecosystem. Plus, mine usually die off after a certain period of time, especially the ramhorn snails.