Our chicks are 3 weeks old today. Everyone appears happy, fat, and healthy but the more I hear about Cocci...the more I worry. I didn't have them vaccinated because I heard that hatcheries can use a live vaccine, and I didn't want to risk it. The bag of chick starter/grower I got (which is all they really had around here at that time because the feed store doesnt get in in until April) is not medicated. They are now half way through this bag. Apperantly I am learning that I will still have to buy at least one more bag of starter feed for them. So, I'm wondering...should I get a bag of medicated feed next time, which would be in about 3-4 weeks? Or, is it too late to feed it to them? Or, do I NEED to be worried about Cocci at all? Here's what the hatchery told me before I ordered. Please tell me how much of this is right. "Cocci is a problem when you've: 1) had a flock established prior to getting new chicks because the adults may have had it, therefore passing it on to the chicks. 2) not totally disinfected the coop and other areas the chicks will be in before they go there." They also told me that if this was our very first flock ever (which it is) and if everything set up for them has never been used by other fowl (which it hasnt been), that we needn't worry at all about it. So.....should I worry, or not?