"Hmm.. It's weird that Tuffy can't digest it that well since your guy could. Tuffy doesn't have colitis or IBS which was my first thought when he started having tummy problems, the vet ruled those two out after tests so he has always suspected his food but I wasn't so sure."
Dogs, like people are different in how they react to foods. Maybe FRR just doesn't agree with Tuffy, I would switch him back to a food that he digests well. Also, I did try a fish based food with Oliver, (not FRR), and he had terrible gas on that, even though he never had diarrhea with it. It could be the fish and chips formula that is affecting Tuffy?
Quincymom