Hello. I have two 'flocks' of baby chicks. One of layer chicks (13) and one of xRocks (15). The xRocks I want to dress in 6-8 weeks... but it's been about 3 weeks and they aren't all that big yet. Yes, some of them are twice the size of some of the layers (some) but I don't know how I would be able to dress these birds 3 weeks from now. Maybe the feed? I read that I should be feeding them 30% protein (feels like a lot!) but I had just gone to my local farmers exchange before I knew better and purchased Southern States Start-N-Grow. The label says 18% protein. I'm going to guess that's too little? What should I do? Should I change feed? Should I supplement with something else (eggs, etc)? For the layer chicks, should I keep them on the same feed or switch them to a higher protein feed for a time too? Any input I would appreciate.