My rotti is almost 10 months. We have been playing with a variety of large breed puppy foods trying to find the "right" one that doesnt give him loose stools etc. Orajen is out, Fromm we like but the pieces are so small literally handfuls fall out of his mouth every meal. I dont think grain-free is the way to go unless your dog has a specific allergy. What does everyone else feed that you are happy with?