Hello,
It often takes them a few weeks to settle in when they come into a new home. I agree though, with
Karrie in her comment on him being a little ill when you got him initially.
You could consider getting a fecal done on him, in case he might have worms or parasites that are
a bit high in count to be affecting him.
The Reptisun 10 tube is a good light. I'm glad that you don't have a screen top so he is getting the
full UVB spectrum & the solarmeter readings are great.
Is his beard black all day or just now & then?
Let us know how he is doing.
Tracie