You will be amazed at how much food these guys can eat a week. Harvested worms should be rinsed thoroughly and chopped if needed. At temperatures of 70-90F mealworms will not change to pupae or beetles. Giant mealworms should not be refrigerated. We use plastic boxes with ventilated lids as our culture boxes, but a one gallon glass jar can support as many as 1,000 mealworms.
Many homemade recipes exist for mealworm bedding and food.
It can be made of wheat bran, corn meal or dry oatmeal. If the culture s bedding becomes dusty and worn down in appearance, add more bedding. Food such as a piece of raw potato, carrot or celery is essential to provide the mealworms with moisture. They can also be fed ground dry cat or dog food. Unless you re queasy, you harvest them by simply picking them out of the medium.