I have a RT male set up inside (I live in the Northeast USA). He is in a 40 gal. aquarium. I have a 100 w non-lighted ceramic heat at one end and a Repti Glo 5.0 uvb at the other end. This is how the privately owned pet store set me up. My question is, can I get rid of both and only use the PowerSun 100 w? I have the dome which faces directly down into his basking area. I currently shut both lights off at night from 10p to 7a. Thank you.