I know it's been asked many times before ... I have 5 big girls laying perfectly everyday for 3 weeks now. 4 Polish girls. Only 1 laying, 2 days, 1 day off, 2 days, 1 day off These have all been on good layer feed and oyster shells and treats I am ready to add these to them ... A pair of Silkies, about 4 months old on Flock Raiser 4 EEs @ 6 weeks have been on medicated Chick Start Yesterday I put them together for a few hours. All was fine but of course they ate each others feed. Combining all birds now, should I just use Flock Raiser w/side of oyster shell for all?? We are building another coop probably for the pair of Silkies and 4 Polish girls.