I have to drive far to buy the wood pellets for bedding. We do actually have them locally but the store has big bins of open peanuts and my dd, who is allergic, will get hives from going in the store or even being around anything that came out of the store sometimes. So I'm going to another town today so I'm going to stop at tractor supply, which thankfully doesn't have bins of peanuts, to get bedding. Since it's so far I'd like to get enough to last a while. How fast do you go through a bag? We are getting 12 babies and the brooder area (partitioned off coop) will be about 4' x 1.5' or so to start with.