Hi, Congrats on your coming addition! What an awesome anniversary present! It seems like everyone feeds their pups in so many different ways. I know it seems overwhelming. Check out this thread
http://yorkietalk.com/forums/showthr...ight=Authority
It's how I decided to feed Authority Lamb Puppy formula to Bo. There are several quality foods on the market, and also a lot of junk. It really depends on your pup's preferences and if he is a picky eater. Fortunately, Bo falls somewhere in the middle. Some days he gobbles it up, some days he won't eat his breakfast till 11:00. I feed twice a day. But he's 4 1/2 months old. With a pup who is picky and tiny, you may want to keep a closer watch. It's very important, as several have said, that you switch foods gradually. Good luck and welcome to Yorkietalk!!
And I love the name Riley!!