my superworms, even my baby worms, I keep them in wheat bran for the beading, they eat it too. throw in potato, or carrots for moisture and other needed vitamins, etc. I also blend in alfalfa(ground to a powder), powdered bee pollen, and a few other things, but they also just thrive with fresh veggies (not any greens or letuce, atleast for my worms, they ignore it) and wheat brand works grate. the extra stuff I add like the bee pollen etc, is added to the main group of worms in a small ammount, but add more to my smaller bucket that I feed my beardies and geckos off of daily.