I have a possible case of scale rot, which I don't understand. This problem boy was in to the vet's office last September, no issues, but in order to keep it that way we changed his substrate fron care fresh to paper towels. Over tank heat, big waterbowl but we never see him soaking. But his belly is brown tinged and feels papery with a few scales sticking up. That's scale rot, right? Should I take him immediately to the vet? Wish I knew how to attach an image here.