I've read many different care sheets, and all are a bit different when it comes to lighting. First of all, I have a UTH, so do I need a lamp as well? And should I get a blue light for the night cycle? Some places say that if the snake has a good amount of natural light during the day, you don't need a lamp for the day cycle on all the time, if you have another heat source. So what kind of heating/lighting should I really get?