How much protein are you feeding? Are you giving calcium and vitamins?
What uvb buld,its age, and his distance from it?
What basking bulb and the surface temp in his basking? All of this will effect his overall health and his growth rate.
For uvb you need a long tube type , no coil bulbs. Depending on enclosure you may need to place it inside.
Basking need to be a clear buld, absolutely no coloered light ever
His temp at surface needs to be measured with a digital probe, nothing else is accurate enough.
Protein give him as much as he will eat at least twice a day. Dust with calcium daily. If your uvb is good dont use d3 daily. If your uvb is not up to par use d3 until you get the uvb resolved. Vitamins 2 times per week.
Offer salad daily. Leafy greens collard,turnip,mustard for example.
Also keep him hydrated. If he won't drink on his on use an eye dropper or syringe to drop water on his nose. Be careful not to aspirate him if you use that method. If he still won't drink add just a little mone citrus fruit punch for flavor.
I hope this helps.
Also if you can post pics of your setup, it will help us to help you sort out any problems
I feed him Dubias, crickets, and giant mealworms, as well as any beetles, or pupa that the mealworms form on occasion. (though most of them go into the enclosure for my bioactive set up) he gets calcium every three days, on one of the two feeding sittings.
i got a new UVB bulb, reptisun 10.0 t8 tube light, about a month ago, and the previous one was about 5 months old. his UVB does sit in the enclosure, and i am pretty sure it is at the closet maybe 9inches away from him, but he would have to be in a really particular spot on his stick for that to be the case. its hard to explain, but ill attach photos.
his temps are about 75 on the cool side, and has a really large basking range from like 85 to 105, since his log can let him get a lot of different temperatures. everything is probe, like you said, since I agree nothing else has really been accurate.
he does get salads, though, I have had to closely monitor him since he will eat the entire thing in a short amount of time and it has thrown off the presents of protein and plant matter they need. i also had plants in the enclosure he effectively destroyed, eating them.
he does drink well, in his baths, whatever i drip on his nose, I also soak his salads really well, especially if he has had calcium.
thanks for your reply and I will attach pictures below
this is an over veiw of the whole enclosure, its bioactive a 40 gallon
this is him from around 2ish weeks ago,
and this is him in my palm about 3 minutes ago