I got my first bag of chick starter at TSC when I was visiting a friend. TSC is a good bit of a drive from me, but I can do other things in that town when I go. I recently learned that a local feed store also sells non-medicated chick starter, which is what I prefer to use, but I'm reluctant to switch between foods if it is going to cause a problem. So, my questions would be: Is Dumor an equivalent food to Purina? My chicks are doing fine, but could they be doing better on Purina? Is it all right to switch between the Purina and the Dumor, or will it cause digestive issues? I have nine Buff Orpington chicks and one bantam araucana. All are a little over a week old. How much food should they be eating? I want to start giving them grit, for a number of reasons. How much should I add to their food?