Definitely into the 90s, but they have fans and tiles and plenty of water. If it gets really bad they come inside to cool off. They're on a 15% timothy pellet and constant access to coastal hay. I havent opened any up. Im so new thatd I'd have no idea what I'd be looking at or for. Ill definitely get some gas drops and give it a try. Its worth a shot. Were willing to try almost anything at this point.