I am running a 20 gallon long tank with both a UTH on thermostat and a 100W Ceramic heat emitter and 8.5" fixture. Where should I be putting the thermostat probe for the CHE? Bot are on the hot side to provide a basking spot, an 85 degree subtrate location under his hot-side hide and to increase the general ambient temps. My question is... How can I place the thermostat probe for the CHE to best control temps? Right now I have it hanging about 6 inches below the CHE. I have it just sitting on top of the wire cover andf the probe is just dangling freely about 6 inches below the CHE. I have currently BOTH thermostats set to 85 degrees. The cool side ambient air temp is about 77-78 degrees,