Ok. Won't I have cannibalism issues? I don't mind a short once-a-week thing but I don't want to be touching them on a regular basis unless its to harvest and feed to my birds.If you want little or no maintenance just do a single large tub, toss a carrot in every week or so and forget it til next week. Not a thing wrong with oats, try it. Everyone needs to see what works best for them. Oats in small batches may be cheaper, but i know the wheat bran is a lot less costly for a 50# bag. I used the cardboard canister of Quaker oats (old fashioned kind) for my beetles. it does compress a lot less over time, and you can see spots where they have chewed.