A bit more info for you, in case you have any other thoughts...
He's in a 10 gallon w/peat and mosst, little water bowl, screen top.

Do I need lighting, and if so, what do you use?
How often should I do a complete peat/moss change?
Should I cover part of the screen top to keep humidity in?

Oh, and about dusting the crickets, what should I get and how often do I dust? When I had reptiles, I used both a vitamin mix and a calicum dust and am only hearing about calcium dust here, so want to be sure. I have a little critter keeper for the crickets where I feed them fish food for at least a day before I give them to Caine, what them to have something in them before my boy eats them!