Hey Boris is 8 months old I've been feeding him fromm gold puppy food since he's 2 months and did great on it. The past month on and off he's been having diarreah I've brought him to the vet a few times they tested for worms and parasites it came back negative the vet gave me metronidazole which helped at first now she prescribed tylan powder which he just started today. I'm worried for my baby that his stomach hasn't resolved itself. I was thinking maybe switching him to a grain free diet of fromm beef frittata would help but I don't know if he's too young to switch to adult food. Has anyone else been thru something similar with there bully. Thanks for your help.