Retic Help

[NewLineReptile]

I have a question on the care of my Retic. I have her in about 100-120 gal tank with screen lid. She has a heat light at one end of it and a 5' florescent light. Her substrate is Aspen there is a hide box alot of branches and real plants. Her temp's are at 85 and the humidity is around 60-70% The temps are right to all the care sheet's i have read but when i pick her up she is a bit cold. Should i raise the temps a bit? or maybe put a under tank heater on. Or do you think it is fine the way it is? she does go to the warm side but most of the time she is in the cool spot

Any help would be great
thanks
Brandon