Hi, I have always kept my frilleds in a 75 gal tank with a 100watt active u.v. heat bulb on one side and a 150 watt cermic heat emitter on the other. I have been reading about what every one else does which seems to me to be to let the whole cage drop to 70 at night. I have not used the 150 watt heat emitters for two weeks and the frilles are acting sluggish. Just sitting on the same branchs. Should I use it during the day and turn all heat off at night, or should I just give them more time to adjust? Thanks for you help, Jacob.