We are going to be picking up some chicks this weekend and I have a few concerns. I understand that layer pellets are not good for roos and hens the are not laying yet. We have 27 older birds and would like to let everyone be a happy family once the young ones are big enough. My concern is that they would all end up eating the 18% layer pellets and the young ones would get too much calcium. I'm betting we win up with a few boys too. How do you house hens, Roos an juveniles together and make sure everyone eats the right stuff?