Thanks! Where can you buy something like that light cage, but smaller since my tank is only 15g? I'm not too handy, so it's unlikely I could figure out how to build one. It was like that while Delilah lived in the tank, and she never got too close. But I realize that was fortunate, and won't push my luck any longer! As for the tape, I think it's "Duck" tape, which is a bit less sticky than duct tape... I can replace it with painter's if that's better.

I just checked on the temps, and they are perfect - 77/89. I think that's good, because he doesn't seem to like it above 90 (he'll switch to the cool side). I marked the dimmer at the spot it's set now, since it's been stable for a good 12 hours... so if it gets knocked off or I have to adjust it, I'll know where the "sweet spot" is. Yay for the wooden vivarium!!