OK guys, sorry for my absence. Here's the update.
I got in a thermostat and a thermometer. It was far too hot in his hide, from what people say it should be (over 100) but the moist hide was about 90 and his cool hide was closer to 80. He hardly ever left the really hot hide though. Once I got the thermostat and digital thermometer I started playing with my heat sources. The heat pad is more than capable of maintaining 90 in the warm hide (if left to its own devices it runs more like 98, I have the probe on the floor of the hide) but then the ambient temperature drops to 70. So I have the CHE on during the day, keeping the ambient temp at 80 (cool side floor temp about 76), and his heat pad plugged into the thermostat to keep his hide at 90-92. At night the CHE is off to mimic nighttime temps when the light goes off.
But he NEVER came out of his hide that I ever saw after those first couple times. I opted to take him in to Petco to the girl I know who has been so helpful. She was going to try to feed him but he was VERY stressed and hissed at her a lot as soon as she even tried to put her hand in the box. So she recommended that they take him to the vet and rehabilitate him, if I wasn't especially attached to him, and get a calmer gecko. She said she'd let me know the outcome on him and noted that he was thin. They actually had an adult gecko in house who is brown with no spots - essentially he's ugly and that's why he's the last one left. But she said he's a total sweetheart. And he is, so I took him home.
Since he's an adult, I'm giving him some time to adjust (couple weeks) and then switching him over to a bigger tank. Does my heat set up sound much improved? (Before anyone asks, yes I thoroughly cleaned the habitat before putting him in it.)
He's big and healthy and enjoys climbing on the branches (which Elizabeth, btw, are dried branches off of an oak tree) and exploring his new home. And his name is Marvin.
