that might be a good idea... i searched around and found an article on how to correctly target feed them. You have to slowly send the phytoplankton or zooplankton from a pipette to the sides/as close to the bottom of the worm as possible. Im going to purchase some of both and use a pipette to try this. Hopefully i can push it out slow enough that the worms wont retract. Ill keep you all updated.