Blue Buffalo For His German Shepherd

German Shepherd. His name is Toby. He is 7 years old. As a puppy and for about 6 years he was fed Purina Pro Plan. They recently switched the formula and added about double the filler. We recently switched to Blue Buffalo. This was the most organic/ well balanced food I can find and had great reviews from breeders. It can be purchased at Petco both at the store and online.