Save up some money and try and find one of these http://www.amazon.com/Zoo-Med-HygroT...med+hydrotherm locally or from Ebay/amazon, it will help you out in the long run but the dimmers are great for now once you get it dialed in, its just this controller is on the expensive side but worth it. keep checking the temps so he/she doesn't get too hot/cold. Mine usually hangs out under the plant right in the middle of the tank if they aren't in the water dish.