I have one 3 year old EE hen remaining. She has been on layer pellets and free access to oyster shell. I now have 5 pullets, ranging from 11 to 14 weeks. I have them separated by wire for now and they are on chick starter. I know they need the starter/grower until they're about 6 months, but I'd like to move them on into the main run with the hen before that. I've read where layer pellets can be harmful to young pullets. So when I move the young ones on in, can they all eat the grower/starter without harm? Will it hurt the pullets if they get into the oyster shell? Appreciate any advice!