I should have explained! If they are hungry they may nibble at the turtle. Also, you'e mealworms will turn into beetles. Earthworms and pill bugs are great to keep in there though! If there are only a few mealworms and crickets in there don' worry for now. Just don't add more.Why are the mealworms and crickets not good to leave in the container? I'm sorry if I sound ignorant, I'm learning.