Can two puppies leave their mother together at 6 weeks of age?
It is preferable to wait until at least 8 weeks, but if Mom has rejected them, than you dont have much choice. I would avoid the canned diet and stick to dry. Canned at this age can cause diarrhea and other gastric issues. If they are having difficulty with the dry food, you can soften it with a small amount of warm water. The breeder sounds a little incompetent ( if they were weaned on “scraps”…and canned food) so i would be certain to get them to a vet as soon as you pick them up, to be sure there are no serious health issues. They can also have their first vaccine DhLPPC at 6 weeks and should be given pyrantel ( on dose now…again in 3 weeks) for round worms as they likely have them ( they get them from mom). Bring a stool sample from each pup with you as well to rule out any other parasites.