and will have an 8x8 coop and large run (square footage yet to be determined) for 11 chooks, how long will the bag last me? Yes, that is FIVE pound (not 50). This is all new to me (# of chooks, use of DE, size of coop, etc.) and don't want to buy too much in case I don't think DE is doing much for me. But I also don't want to buy too little and not give DE a fair chance. Suggestions? How fast do you all go through a 50lb bag?