Instead at 8 as it says on the bags. Just turned 6 weeks today and I'm down to about a feedings worth of feed. Buying smaller bags seems like a waste of money but I equally don't want to buy two 50# bags in two weeks if the only difference between them seems to be the protein level (correct me if I'm wrong). Will switching them early hurt or could I keep them on starter/grower until that bag is empty?