I feed the Blue Buffalo puppy food right now. It has no fillers or by products no corn/wheat. You can get it at petsmart , and it's not too expensive...They seem to really like the food BUT they don't like the little "lifesource bit" that are in the food . I'm not sure if it's the taste or texture ( they are very hard) that they don't like, but neither of my dogs will eat them and they leave them all over the floor
So I may try Wellness or Natural Balance next. It's a hard choice but it's good to do you research first.
I was feeding bad food ( which at the time I thought was good food) to my dogs with no idea of how bad it was till I came here. Funny thing is we eat Organic and natural healthy foods...but I never looked at my dogs food labels
Now I know better.