Quote Originally Posted by bcr229 View Post
Your thermometer reads temperature. You need a thermostat to regulate temperature. Do you have an under-tank heat pad or just the light?

If your AC vent is making the tank too cold and dry, either close off or block the vent, or move the tank so it's not in the path of the conditioned air.
The dual thermometer is for reference only. I have a thermostat with a humidity gage as well. I have a humidifier, 2 heating pads, and an infrared bulb. They are all on the left side of the tank and I just installed them about 10 minutes ago