Hello,
Poor thing, it looks like he is not feeling well.
As suggested, do try to upgrade your
UVB light. We recommend the long tube bulbs. The
best ones are either the Reptisun 10 or the Arcadia D3 12% or 14%. For the sized tank you
are using, the T5 High Output tube bulb would be great. Be sure that it is mounted directly
overhead at or around 10-12 inches above him, beside your basking light.
For now, can you keep him a little warmer overnight, around 80, while he isn't feeling very
good, to help boost his immune system? Use a ceramic heat emitter as they don't put out any
light, just heat.
Getting him outside & placing him on your lap might help get him some well needed UVB if
you can.
What type of supplementation do you use for him?
Tracie