Hello,
Just looking at your setup, everything appears to be correct. Since you are using a digital
probe to measure the temperatures, they should be accurate. Can you measure the ambient
temperatures to be sure they are not getting too hot?
How old is he? He has or has not brumated? They can brumate at young ages, really if they
are healthy enough.
You could consider getting a fecal done on him, if possible. You can get one done at a regular
vet, too. It doesn't necessarily need to be a reptile vet, but just don't let anyone medicate him
if they don't know what they are doing.
Using a T5 tube from Arcadia, it can be at a 10-12 inch distance from him, especially since it is
above the screen. As long as the basking bulb is beside the tube where he can get both at the
same time that should be fine. Maybe move the basking light either in front of or in back of the
tube bulb fixture so that the spectrum overlaps a little more, if you can.
Tracie