I have absolutely got to combine my 2 groups. Space is most of the issue, but the other is that the younger group has not been able to go outside because the door to the coop is in the big girls half. So I have seven 17 week old girls in the first group, still on grower pellets. The second group is 13 chickens aged 8-11 weeks. I'm already stressed about putting them all together and hoping for the best as far as them not killing each other. But NOW I'm troubled about the food. I know the big girls need to be switched to Layer pellets soon. But if I successfully combine everyone how do I handle the feeding. I know that there is no way to feed them different food after they are all in one coop. So I guess the big question is...can the big girls stay on the grower pellets until the rest of the flock gets to the age that they need the layer pellets?