I have my first chicks coming in April. I have read not to over stock on your feed because it loses it's neutrional value. [ i am a bad speller by the way] Any ways I ordered 12 chicks. There is a possibility of getting extrs roos. What size bag of chick starter should I get. They carry a small bag like 20lbs. or something and a 50lb. bag. I just don't want feed to go bad if it sits around to long. What do you think?