I know this probably is a repeated question but I cant find the answer I was looking for so I will just ask. I have 6 Buff Orps @ 4 weeks of age, all believed to be hens. Use will be pets/eggs(layers). 1. What age do you stop feeding chick starter? 2. How is scratch grains used, sparingly or as regular feed? 3. What would be a regular feed left in a feeder with constant access be? Layer or something else??