I know those and my hot spots are 86~89 measured by temp gun. But my question was that, the snake was on the hot spot hide and I saw it moved to the cool spot. I instantly measured the bottom of the tub where the snake was laying on and it measured at 94~95 degrees. I was asking if it should go up like that after snake was laying on it? because when I didn't have snake, it was perfectly at 86~89 degrees. Is it suppose to go up because snake is on there? if so, should I lower thermostat even more? other parts of hot spot is perfect except for when snake lays on it for long time.