Hi I was wondering at what age do you start giving the chicks layer pellets mine are about 10 weeks old and i also have some that are 7 weeks old I know i Have a little while before i start giving them the layer pellets but just want to make sure that i start them at the right time also will it hurt if the 5 younger ones start to eat it when the older ones do they all eat out of the same feeder or should i wait to start the layer pellets when the younger ones get to the right age then start them all at the same time. Also was wondering do you give the chickens the medicated layer pellets and willt he eggs be safe to eat if i do. Also when can i give them scratch and oyster shells. I would really appreciate any help you can give me i am new to raising chickens.