Thanks to everyone for their comments! For those who are concerned about his enclosure size, I do plan on upgrading him to a full greenhouse eventually, but for now he's happy enough with the little one. I take him outside at least every other day when it's nice out.
Thanks for your reply! He's an indoor tortoise, I keep him in a 3.5 x 3.5 foot tortoise table. I have two types of substrate, half is Timothy hay and the other is coconut fibers. For his heat lamp I have a 100 watt Simple Deluxe ceramic heat emitter, and a 20 watt Zilla Desert Fluorescent...
So, I'm on my first winter with my ten year old Russian and he has just stopped eating.
I think the reason here is because he is trying to hibernate so I have been soaking him in a warm bath nearly every morning to keep him a good temperature and dissuade him from hibernation. This worked for a...