I have nearly 2 week old CX. I am having a hard time finding what to feed them after chick food. At our local store there is a grower but it has 15% protein. I think (correct me if I am wrong) they need higher protein. Is it possible to continue a non medicated chick feed (22%) their whole life? From what I understand, I am to let them free feed to week 3 and then 12 hrs on 12 hrs off. Is all this correct?