I need to buy a new heating mat for my baby leopard gecko, the old one i had just made a hot spot and didnt really heat a side of my tank, i have a 10 gallon tank for my gecko, and right now im looking at buying either exo terra or zoo med heating matts, 2 questions, wat size? and what brand do u guys recomend? I also have a 100 watt red infared heat lamp for extra heat if thts any help, thanks