We've got quite a smorgasbord of ages going on in the coop right now with the youngest right around 12 weeks. We went a little crazy when the feed store had chick starter (unmedicated) on sale and we're doing our best to get it used up, unfortunately, there's about 50lbs left. Now we have Red Comets pullets hitting the 16 weeks mark and I'm wondering if we should just quit feeding the chick starter and go with a grower instead or if the chick starter is okay to keep feeding. I have a bowl of oyster shell out there as well, although it seems no one is even picking at it, and that may not be necessary either, and it can easily be removed. So I guess my question is, chick starter okay? or should I go to a grower? or would it be safe to put the whole clan on layer?