I didn't do it on purpose. When I checked the food two days ago i didn't have mold. I do gutload my crickets with carrot,oats and calcium sprinkled dog food. I know how to take care of them as well. I hadn't checked in two days so I'm assuming it grew in between. I didn't know the mold was there. I threw the mold out right away. Thanks for the advice anyways, means alot.