I thought I would give an update on Onxy. I took him to the vet monday, due to my concern that he wasn't having any bowel movements. The vet's findings indicated that he was impacted, and possibly had a parasitic infection. Onyx was given 2 enemas, which relieved his bowel blockage, was dewormed, and put on antibiotics in case he has a bacterial infection. After the treatment, he is alot more active, and his color is better.
I also installed a radiant heat panel, and lowered his uv light, so that he can get more UV light to his skin. The basking spot is now tuned in to give him a 120 degree basking area, which will help keep him in good shape.
I really believe that he has turned a corner, and that he will be ok.