What is the best/Healthiest food for my 8-week old mini dachshund, and going onwards when she grows?

I'm going to give my dog Canidae All Life Stages because it sounds so healthy for dogs. It says that its for puppies, adults, & seniors so you wouldn't have to change. Someone posted a question about nutro vs. chicken soup and that's how I came to the conclusion of using Canidae. You could search for it on Yahoo Answers if you want.