Hi everyone, I purchased a two year old Russian tortoise about two months ago from a man who bred a few in his back yard. The tortoise seems healthy and has clear eyes and a clean beak. It eats quite a bit. I think I have the cage set up pretty well with a mercury vapor bulb at one end of a large cement mixing tray for the tortoise. The problem is that it gets up in the morning, eats, walks around for about an hour or so, then goes to sleep all day under a log. This does not seem like normal behavior to me. Could it be too cold? Does anyone have suggestions? Thank you!