I forgot to get my Countryside Organics order in, and now I can't get grower feed for another 3 weeks. They recommend their starter feed for 2-3 weeks. It has: 21% protein, 2% fat, 6% fiber and is ground finely. The grower feed differs only in that is has less protein (19%) and isn't ground as finely. Could I mix in some scratch to reduce the overall protein content and give them something bigger to eat? Or should I just resign myself to getting store food to eat until January?