I have my first batch of colored rangers arriving in the next day or so. Joel at JM Hatchery recommended that I use a 21-22% protein starter for two to three weeks then switching to a 18-19% protein grower until week seven. Finish them with a 16-17% protein content. Here in SD, I don't have those options for feed. I am able to get Homestead FastGrow which has 20% protein. Can I just feed that for the entire time?