Do you really have to switch to grower feed? Could you not just use the chick starter until time for Laying pellets? Everyone here is around 4 weeks and getting chick starter except the adult chickens that get flock raiser...I've used all different chick starters. Then I know I'm picking the right one. Right now were using game bird starter...last it was just chick starter, before that a different brand of chick starter. With 17 laying breed chicks, 8 ducks, and 9 meat birds we've gone through a crazy amount of food. I don't let it run out but in 2 months we've bought 300lbs of feed for everyone 100lbs flock raiser, and the other 200 is between game bird chick starter, and meat bird grower feed...at first I didn't put the feed in anything I just had the bags on the garage, but then I noticed that something pretty large had scratched and torn a big hole in a bag of flock raiser, so I got totes to put all the feed in. I'm hoping this will keep us from having to buy so freaking much.