I have a 9.5wk old chihuahua. He currently eats blue buff small breed puppy kibble. I've tried feeding him raw with horrible results, (dihareha, blood, mucus in poop) I've just tried The Honest Kitchen and the first night he ate it like he loved it. That night he threw all of it up a few hours later. Now he won't touch it and we're back to kibble. I want to feed him something better than the blue buff though so any suggestions?