Thanks Grif! Before I posted my little concern, I had uncovered him and tossed in a cricket (without breaking the back legs!) and when i looked in a little bit later, the cricket was gone! So i threw another one in and *gone*
His temps are 81-83 during the day and 76-79 at night so i'm pretty close to what you suggest! Thank you !!

I'm off to PetSmart today to buy some more crickets and worms