I have three week old chicks and am just about out of chick starter. I am using H and H poultry organic starter. I bought Cascade/Magill Ranch grower for my pullets. The difference is that the starter has 19% protein and the grower has 16% protein. What can I give my chicks to make up the difference in protein? I have one chick that is teeny for her size and don't want her to lose on any nutrition. I don't think that I will be able to use up another bag of starter in 6 weeks for these chicks. Thanks.