I breed dwarves and was all excited to regurgitate my knowledge and experience... then Michelle beat me to it. I would say for food only for colubrids you are better off with mice - but they stink as you know. Another way to do it is to breed dwarf males to full sized het dwarf females. This will give you full sized litters with 50% dwarf, so basically you'd have ~6 non dwarf pups that would need to be fed or euthanized small and ~6 dwarf pups which will stay mouse sized for their first 3-4 months or so.