Ok just switched from lamp to a small heat mat. At first I had it on the bottom of the tank, then put it on the actual side of the tank, then placed it on the back of the tank to one side. It's close to the bottom and the glass gets pretty hot, if Rupert accidently ran into the glass he could get burned I'm afraid.

Am I supposed to place it high on the aquarium? Or would it be ok to put on the bottom if I layered the bottom with rocks and then eco earth on top? Any tips would be appreciated, trying to create a more comfortable home for my frog