I’ve been researching dog foods for about two weeks now and I just can’t decide on what I think is best for him. He’s 4 months and about 7 pounds, and IG’s typically need a high protein high fat diet but I can’t help but be cautionary of very high protein foods (Orijen?) because he’s so tiny. I’ve been looking at Canine Caviar, Acana, Orijen, the Petcurean Now!/Go! line, etc…. Thoughts?