My first-ever chicks are due the first week of May. I have ordered organic starter feed from My Pet Chicken. As near as I can tell, the feed is not medicated and thus will not protect the babies from the disease. The chicks will be vaccinated against Marek's, but I think it prudent to give them something for the Coccidiosis--no? If so, is there something I can add to their water? to the feed?