Hello,
Oh dear, he was extremely young & shipping them that young is hard on them.
Can you post a few pictures of his tank setup for us so we can see the entire scenario?
The Reptisun 10 T5 should be fine, no problem. How far from him is it?
The temperatures might be just a little too high, possibly, at 115 in some areas. It is hard
to get temperatures just right sometimes. Try raising the basking bulb just a little to try &
get the temperatures down a little more.
Overall, the tank temperature or ambient air temperature really shouldn't exceed 80-82 or
so. Otherwise, they can become heat stressed & suffer heat injury in some cases.
That is good you stopped leaving crickets in the tank, they will & do bite.
Maybe let him try to adjust for a bit before panicking too much. I think it is going to be the
temperature issue along with relocation stress combined.
Tracie