Unlike mealworms, Superworms have to be seperated into individual compartments to morph into beetles. It takes a long time for them to do so. I use one of those fishing tackle boxes with all the compartments to hold stuff.. Melt small ventilation holes over each compartment and place one superworm in each.. store in a dark area and voila.. beetles after awhile. No substrate or moisture in with them while they're pupating.

