Right now I dont do anything special . They are very easy to raise in a normal tank (without fish) just by feeding . Ive just basically let my tank sit and they have mutiplied like mad . The babies are pinhead small and white but they free swim in a massed ball in a safe area . I started with a couple in my sump , they quickly overtook that and migrated to the main display . Without fish in there they have slowly massed in the there to . Now Im just dedicating a tank or two tied into my frag system for them to breed . Basically anything you would do to raise pods (podpile , fishless , etc. ) will be relevant , but these guys can catch , swim and eat flake and pellets bigger than them .