Usually the pups stay with their mother until around 12 weeks. But, I got mine when she was 6 weeks, also. If you feed a puppy food that is an All Life Stages food then you can feed the same food into adulthood. I feed Innova puppy (an ALS food) to both of mine and they are 9 weeks and 10 months. They eat from the same bowl so it was imprtant for me to choose a high quality ALS formula.
If you do get the pup at 6 weeks you def. want to free feed for several months. The pup will be so small it will be at high risk for hypoglycemia or low blood sugar. Also, if you crate at night or when you're not home, make sure food and water are available 24 hours a day. You might want to moisten it, too, to encourage your pup to eat.
And, don't forget to transition to the new food very slowly. The breeder should give you a sample of what she is feeding him.
Good luck! |