Hello, I"m new here so I apologize in advance if this has already been addressed (I did look around but did not find the answers I was looking for) I currently have 4 leopard geckos (3 female and 1 male) each in their own 10 gallon tank. After doing much reading I decided on tile as the best option for substrate and purchased 10"x20" tiles that fit perfectly in the tanks. The trouble that I am having is with the heating. I'm using UTH's on thermostats, with zoomed thermometers but in order to get the moist hide warm enough (anything past 84 degrees) the tile in the "cooler" area of the tank is registering into the 100's!! (much too hot!) Has anyone else had this issue? Is there a way to correct this?? What am I doing wrong? Thanks in advance for all the help!