in a 50gallon tank with sliding screen top. His heat is a small uth. He doesn't soak in his water dish and the aspen is never wet/damp. I called my reptile vet and he told me that this could be a symptom of his age. He doesn't have any blistering, just some deterioration of the scales. He was not encouraging about this condition. Of course, he was only going on my description. I haven't opened his mouth to see if there is anything going in in there but when a friend comes over to hold him for me I'll do that. If it appears that all is not well in his mouth I'll take him on Saturday for a thorough exam. Might do it anyway. I don't want to lose him but I don't feel good about this at all. The vet stated that most/many geratric animals show poor quality coat, skin, and in this case scales. Ten years is not ancient but definitely not a youngster either. Thanks, for your comments. I'll update on him as soon as I can.