We have 18 16 week old black sexlinks pullets, and 24 3 year old mixed breeds. Because the sex links were getting so big so quick we made the decision to allow then to integrate with our mature hens about 2 weeks ago. All went well, no issues other then the normal pecking order stuff. My concerns now lay in the feeding. The week before allowing them all to hang out together, we blended the chick grower with the Layer feed. Now they all eat the layer feed, mostly b/c the big girls like to eat out of the little girs area and drink from their fountain. Reading some of the comments, I'm now nervous that we've done the wrong thing and should go back to grower feed for all for a few weeks to avoid any possible problems with the little one in the future. Any thoughts??