Oh, best stuff to feed them: As a base, Mustard, Collard, Turnip greens, Bok Choy. Then throw on there some Spring mix with Endive. About three times a week, you can throw in some frozen veggie mix (carrots, green beans, peas, etc.). Try not to feed a lot of insect matter. Mine used to love Superworms once every couple of weeks. You can try crix too (mine didn't like them). Phoenix Worms are the best insect matter out there right now, though.

Make sure to supplement with some Calcium & multivitamins at least a few times a week.

Also need a UVB light (Reptisun is the best IMO). Your temps sound good. Do you know what the humidity is? These guys like it dry. They also need a lot of space.