My chicks are now coming on 6 weeks and I am looking at what feed to move them to after the chick starter. They are all layers -- I want to go organic but wonder if there is an I between feed before moving to a layer feed? This is my first group of chicks. I have eight - 2 Delawares, 2 Welsummers, 2 Red Stars, and 2 Easter Eggers. Any suggestions on what to move to next feed wise? They are now getting Manna Pro medicated chick starter. Thanks for your help!