Staple diet is crickets, and unfortunately I do not know what is a good idea for treats/alternatives. I've heard people feed nightcrawlers, dubia roaches, various kinds of worms, but I only feed crickets to my little guys. Feeding should be at least every other day, dusting with calcium+d3 supplement during these feedings, with a vitamin supplement dusting once a week (as I've recently been told again and reaffirmed for the fifth time). You can feed between days, or every day if you would prefer even, but the dustings can only be done every other day to prevent calcium overdose.