My two feed stores are very customer un-helpful (Big R and TSC). I've requested they order me some wheat bran and they said no. No competition - only one feed store in each of the two towns I'm situated between. They have a captured customer base with all these farms and ranches and just two corporate feed stores serving this vast area in southern Colorado and northern New Mexico.The feed store often orders things for me that they don't carry, and usually at still a good price. Don't know if they can get organic, but maybe.
Since I live so far out from towns and stores, I raided my pantry for cereal. I found a small bag of oat bran. I used that for the younger tray of larvae. I discovered a box of Wheatena, and I used that for the tray of older, larger larvae. I kept a small handful of large worms out and installed them in some fresh "feed", the original bedding I've been using recently.Would grinding up some of the oats in a blender work for what you're tryng to do with the worms? Instead of buying the expensive wheat bran?
Next week, I'll drive over the pass and get some Red Mill wheat bran and add to the trays. I'm hopeful this is going to produce some pupae, if only in the small larvae tray.
But, absolutely, ground up rolled oats work splendidly as bedding.
I'll keep you posted.