This topic was discussed shortly after the panfish forum was started. Several of us keep worms. We have two styrofoam coolers in our cellar with worms that we use for bait and composting. If we buy any and have some leftover, they go into the tub ,too. That's really how we started keeping worms. Use that Frabill bedding to start and supplement with shredded newspaper and chopped up vegetables and you're good to go. - Roberta