I mix Purina Puppy for Small Breeds and Puppy Chow for small breeds. I've done this since day 1. I was gone for 2 weeks out of the last four and my sister who kept him last week (she has two very small dogs and got to play with them for a whole week) said the first few days he would vomit and not play but at the end he was sleeping next to them and eating about the same as he is now I came home (Friday) and in the past week he has vomited twice. So I figured he either missed me and is acting up or he is missing his puppy friends. The first time I was gone my husband kept him and he went crazy (he is potty trained) but let my husband have it. So I know he is very temperamental. If any of that helps. At times he mopes around and then an hour later he is all lovey |