I can see why there was a mistake though. That picture really looks a lot more like a White's than an ATF. But since you found it in the wild it's an ATF. As a note sometimes heaters have trouble heating through all the substrate. It might work a little better on the side or back, or so I've heard. The frogs are hardy and can tolerate low temperatures, but would probably do best at about 75-80. Sadly I don't know what your frog has. I do know that fungal infections of the skin can sometimes be treated with Melafix, but a more knowledgeable person should tell you whether you should try that and how to do it.