I think I won't take risks, and throw everything in the enclosure out. Thank you everybody. I have talked to
@jajeanpierre already. The last few days, he was acting different, I just didn't notice it. He had been hanging out in the bottom more recently, but he still basked, so I thought nothing about it. He also puffed up more when I tried to hold him, so I left him alone. I will try to get some photos tomorrow.