Hey Jo-Anna, I am going to keep them the same way as my dubia with just a couple differences. They will go in a large, dark Sterilte plastic tub that has had an opening cut in the top with screen glued down. It will have a heat mat placed inside with no substrate and egg flats for them to climb on. Up top, I will have the standard layer of clear packing tape (which keeps the dubia babies at bay) as well as a layer of vasoline above that. I have heard that the vasoline can break down with elevated temps and have heard that "bug barrier" is the best. If that ends up being the case and I have some Houdini's on my hand, then I will invest in the bug barrier product.