That sounds fine. Just make sure the rocks can't fall on him or trap him.
:Thanks, I upped the temperature just a little. I searched for pictures but I didn't find any baby snapping turtle indoor aquariums. Mostly RES and stuff... Should he be able to sit on the bottom and reach above the surface to breathe, or should he have to swim up to the top? It's pretty deep, but the basking rock has many levels and he is able to sit on it and reach the surface. Is this okay, or should I still lower it? :--LAcy