Ya I'm in the same boat I have 6 snakes in one rack and only one pair to breed so I don't really want to cool the whole rack... I also live in oregon and the temps in my room drop to 65-70 at night during the winter so I don't want to shut heat off at night. I'm also a college student and don't have the extra $135 to get a herpstat nd. So should I maybe drop my rack to the high 80's like 89 degrees instead of 92-93 it is now?