why do you need firebrats? these guys are a pain in the ###### to breed. A culture takes 6 months before it starts producing. To breed them you need temps of 110-120F a good way to do it is to have the firebrats in a large critter keeper, cover the top with a mesh (like nylons) inside the container you want a substrate of wheat bran, a shallow dish of water with a little bit of mesh on top to prevent the firebrats from drowning, some egg cartons and cotton balls (that's where they lay their eggs). Place the critter keeper in one of those styrofoam containers. drill a couple of holes in the styrofoam insulating container for ventilation...literally a couple.not too many so the heat disperses. you will have to trian and error this till you get the right amount. Wrap some heat cord around the inside walls of the styrofoam container. Connect the other end to a thermostat, Place styrofoam lid, let incubate. feed them fish flake food twice a week. doubleds.org currently has firebrat cultures for sale.