Are they caged together or seperately? If they're together, seperate them. Many people feed mealworms exclusively to their AFTs and Leos so I'm thinkin' it won't hurt but if you want the one to go back to crickets try withholding all food for a week and then drop in a couple crickets and see if it takes them. Mine won't touch mealworms, not enough action I guess . They like the chase involved in catching crickets.

Quig