I have them in glass tanks with mesh tops, I've heard to cover them with foil and I'll be trying that.
I didn't think of his wound being more sensitive to temperature but that definitely makes sense.
I was using the "dial-like" gauge but I noticed it didn't fluctuate at all and saw a lot of people saying they were inaccurate. I'm looking at some new ones now and will be making a stop at the pet store tomorrow for an upgrade. Any brand you recommend?