Our chicks are going to be 12 weeks this coming Wednesday. We recently had to move so my mom and dad are taking care of our chickens. I told them exactly what type of feed to buy, starter/grower, but when they went to the store they only had layer. They ate that for a few days until I saw what they bought and got what they should be eating. They are almost done eating the last bag of starter/grower and my mom and dad want to start feeding them the layer that they had bought. Would this be ok, or should I go ahead and buy them more starter/grower. We have 9 hens and 1 rooster. Any advice is greatly appreciated!