more importantly, where is the strip located on the tank. those strips will usually give you an idea plus or minus 4 degrees, but if it needs to be near the bottom on close to the substrate. if possible get an indoor/outdoor thermometer with a probe, and place it under the substrate. this way you can avoid any burnt bellies. if you're using a heat mat w/o a dimmer or rheostat, then i'd be willing to be that the temp is much much higher than what it's reading. another rule of thumb, if it's warm to the touch it's too hot. you're palms usually run in the 90-95 range so if it feels warm to them, then it's over that.