Just want to make sure....I have 2 coops/runs...large one for my older laying birds, and a small one for my 10-12 week olds. In the large one, I have layer pellets, small one has grower/finisher crumble. Because both cages are left open during the day while they free range, both groups are often found eating in the others' cage. More so the older birds eating the grower/finisher. I'm starting to think they are somewhat unhappy with their pellets. I only just stopped feeding the medicated to the little ones. I was locking down their food during the day. Now that it's normal grower/finisher, I'm leaving it open and the big ones are scarfing it down. I'm guessing I won't buy pellet again, but until it's gone, I want to make sure that the older ones won't be harmed by eating the grower... As for the needed calcium, they have crushed oyster shell all over the place, so that's not an issue.