So adjust the heat lamp- you need to get your basking area for him to around 105-110-- you have the UVB diagonal can you put it across width wise so he can move across his logs if he wants so he can just sit under the basking or UVB -- you can center the UVB in the middle of the tank and have the basking on the one side - you can move your decor around --- hes absorbing those UVB rays if hes just sitting in the one spot- but I would work on getting your basking temps up -- its just a matter of moving things around for him so he can get his temps that he needs and the UVB rays he needs -
Karrie
Karrie