I've been trying to figure out how to set up the lighting for Mushu's terrarium. I have a top screen 20L Gallon Zilla Critter Cage Terrarium and I know he needs a red light and a day light but do I need more than two lights or will those work? Also my apartment's thermostat is set at 70 Degrees and I was wondering if that is an OK constant temp for corns or do I need to raise the thermostat?