You don't want to use belly heat for frogs though. You put it on the side of the tub instead of the bottom like a snake or gecko rack. Right now I have my baby pac in a kritter keeper with heat tape taped to the side of it with no thermostat and it holds proper temps. I would never do this with it on the bottom though! I take a look every day to make sure hes not like pressed up against the side. The little guy likes his water dish a lot, and plops right next to it lol.