Hey all, I have 4 EE's that are going on 13 Weeks that I'd like to let into the flock of older girls. They've been outside separated by wire for a month or two now, and they all are just about used to each other, but the issue is food. The EE's are on Chick Starter still while the big girls are on Layer Crumbles. . . I've heard I can switch over everyone to Grower Crumbles, will this be okay for all ages, layers or not? Thanks!