I am the guy that inherited 5 tortoises and now I just found out I have 2 more large sulcatas coming in the next few days. I have seen them and they are between 100-150 pounds, they are a breeding pair. I have the room, so that isn't a big issue, yet. Do the large sulcatas have to have the same warm temperatures in the winter as the smaller ones do? I built a tortoise mansion that I will get set in their pen Monday (for the forst batch I got), but am not sure exactly what I will need for a "house" for the big ones coming.