[LunarBerry]

I use Wellness Core puppy and have mixed some Wellness Small breed puppy a little, but still like the Core one as it's grain free. It's done wonders for my jack rusells (though they are older) and has been good to my yorkie so far :3 But as it seems, it may not be for your pup. Or maybe try something else from blue buffalo. There's Dog Food Reviews and Ratings | Dog Food Advisor that offers plenty of suggestions and stuff on doggie foods