After you have ordered your superworms from DubiaRoaches.com, they will arrive in a small plastic tub or cloth sack used for transport. It's best to take them out of this transport container and transfer them to a permanent form of housing, which can be a plastic tub or critter keeper. If using a tub, make sure to poke plenty of holes in the lid for ventilation.
Fill the tub with a few inches of an edible substrate such as oat bran or uncooked oatmeal and add some pieces of nutritious vegetables for a source of water. Also, make sure to provide a lid or small paper plate with food for gut-loading.
Superworms kept in tubs together generally don't pupate into beetles, but it has been known to happen. If you accidentally end up with a beetle or few, you can try feeding it to your pet or use them to breed your own superworms.
For more information about caring for superworms, read our guide.