Hi, I've seen a lot of set ups that use slate tile on the bottom of their tanks and I was wondering if the UTH are hot enough to go through the glass of the tank + the slate tile. Do the tiles even get any warmth? Also, Would it be too much if I used a ceramic bulb AND an under tank heater (the sticky pad kind) during the day, and then at night turning the ceramic off??? I feel like he won't get enough heat if I dont use the heat emitter on top of the tank, let alone any fluctuation of heat during the day and night (ie. the heat of the tank will be the same during the day as during the night if I ONLY use the UT heating pad). I am just totally lost on both problems. Thanks!