Pasquale was on the Ultra Natural Balance Chicken formula (Small Bites) at first..he absolutely LOVED it. However, he was starting to itch really bad....ALOT! So I just went and bought him the Duck and Potato Allergy Formula Small Bites today. He's not too thrilled with it. The fish and potato may be my next step. But i'm gonna give this one at least a few days. I'm exhausted cause it took me FOREVER to find a food he would actually eat and now that i found it....he started to itch.(sigh) Oh well...wish me luck. I say if your dog likes the fish and potato...stick with it!