Thank you for your reply. I will go and change the outdoor enclosure when I get off work tonight. However, he has urates and bowel movements every week, and I have been observing for so long without any abnormalities."
They dont live together, for the summer i dont used UV and Basking, they run a around the balcony. i have other tortoise, but they not live in the same enclosure.
Because it's very hot here, I don't use heating in the summer. I use a forest floor. The enclosure is approximately over 1 meter in size, and my tortoise is around 36cm.