Ok so I took advice that I got on here and got a temp gun. Now when I went to take temp on my lunch break the gauge thermometers said 79 and 85. When I used the gun the area over the uth was over a hundred so I unplugged it. And since I cannot afford a t-stat right now all I have for my tank is a 50w infrared bulb. What can I do to make sure the temp stays at the right level untill I can get a t-stat? And was my thermometers in the tank just reading the ambient temp? And for a lil more info it's a ten gal glass tank w a screen lid. Any help appreciated.