I understand snails need warm waters....example my tanks used to run right about 68-70 so I purchased a heater to increase temp because it's quite chilly here in Chicago.
However, I read somewhere (don't know where) about the possibility of a snail getting burned on the heater. The snail would crawl onto the heating element and stay there, thus getting burned.
Is this possible? And is there something to be done to prevent it? Heater guards??