I also use bread, its like whole wheat or something.They make holes and crawl all threw it. We go to the discount bread store (flowers bakery) that sells the day old bread and get a shopping cart full of bread for 4.00 for the chickens. I thought id try bread with my mealworms since its whole wheat. They seem to like it they go up under neath it and lay there. i put a little bit in my baby mealworm drawer, and a slice in superworm and beetle drawer. The supperworms like the potato, my mealworms dont. I added an apple last night to see what they would do. I havent checked it yet.