I had bought 100 mealworms and now I have beetles. I desperately badly need to separate the beetles from the mealworms, but I've got to get them some substrate. For the mealworms, I put them in one of those plastic shoebox things with a jar of wheat germ, but it's way too expensive at over $4 a jar. I read about wheat bran, but I can't find it anywhere. I've looked with the oatmeal, with the regular cereals and also with the flour and cornmeal and just can't find it around here in NE Alabama where I am. Can I get cheap bran flakes and grind them up in the food processor or maybe mix that with oatmeal or baby oatmeal cereal or something? Oh, and at a couple of stores I did see Oat Bran next to the Cream of Wheat, but it's pretty expensive too. Can the Oat Bran or the Cream of Wheat be used even though it's too expensive? Thanks!