Ive got both my uth's hooked up to a rheostat and tweaked pretty well to the point they are both where they should be, 95 hot side, 85 cool side, 40 gal tank, keeping an eye on the temps tho, the coco subs wasnt as dry as i wanted it to be before i put it in there, just used the heat lamp to cook the surface, gonna be mixing it all up daily to make sure nothing molds. Saw another substrate i might want to try as well, Douglas Fir and sphagnum moss mixed and damp in a bag from Zilla. Cant find to many constructive opinions on the stuff though. Probably going to start a new thread for it. Would it be ok for the ambient temps to be 70-75 as long as shes getting her belly heat? So many questions. So much time. lol.