This I my first flock its a small flock of 7 hen and 1 roo they are all 5 weeks old. My question is as they get older what do I feed them? I've read that too much calcium is toxic and wait to they start laying to give it to them in a separate container so that they eat is as the need it. The layer feed has calcium in it and I'm worried that if I feed them the layer that my roo will eat it as well when he doesn't need it like the girls do. So what can I feed them so that they all get the nutrition they need?