I have two questions. What should the day/night air temps be? I have the 60 watt zoomed CHE along with the zoomed heat pad plugged into the zoomed thermostat that's set at 90* F but it's not getting close to that. But my probe temp. which has read about 84* F. yesterday evening and right now it's saying 80.5 but so far it's fluctuating from 78* to 84* and the probe is right under the CHE! I'm working on getting a heat pad reading now but i feel like those are fine temperatures since it's not 90* at night where they're from. Should it be hotter in the day? If so, I'd like to know who has their leo's in a 20 gallon long and what CHE they are using.