Here's a solution, I too am not located near any feed stores. I live in the city not near farms lol, I buy my mazuri from ebay. Its not cheap but they grow great on it. something like $20 for a 15lb bag, shipping included. For my 2 1.3 groups and 20 or so babies at any given time, it lasts around a month, with a food hopper. I might go with cheap dog food in one tub to see if theres a significant difference