I was cleaning out the pot of a palm tree that had died. In the process i captured around 15 or 20 isopods. I put them in a container with damp peat and vermiculite. I have been feeding them fish flakes. I noticed a cottony white mold build up which was gone in about 3 days. Here's my question, how do i get them to breed? How long does it take to set up a viable colony? Thanks.