Hello, So I have a couple Leopard Geckos. I've currently got them set up with an under the tank heater mounted on the side and altering day/ night lamps, but I am worried that they don't get enough heat on their bellies specifically. Because of where I keep the tank, I can't put a heater underneath and I know that a heating rock is dangerous and should not be used. Any ideas about a way in which I can ensure they are getting enough heat underneath them despite these limitations? Any advice is appreciated! Also, I am currently in the market for a good thermometer. I have a basic one but it is old and I would like to be able to double check it's accuracy. Any suggestions? I'm going for affordable here, people.