I keep my cresteds in one and I've made a few others for frogs before. I've tried keeping my garters in 1 before but they destroyed it. I'm trying them again with a better built one. So far they haven't ruined it but they did figure out how to get behind the background which is annoying. I wouldn't use a corn or a similar snake though becuase they love to hide. Garters, Ribbions, Water Snakes, and other small active snakes would probably be a better choice. Those type would also enjoy a water feature which is pretty nice too.