What kind of food can I give my 4-week-old Pomeranian puppy?

If she is only 4 weeks old she needs to be drinking milk replacer formula. https://www.petsworld.in/royal-canin-baby-dog-milk-400-grams.html You can also start offering some wet food: https://www.petsworld.in/royal-canin-starter-mousse-mother-baby-dog-195-gm.html

Ideally, they should stay with the mother and litter until at least 8 weeks of age. This can prevent behavioral issues as they get older. They can start weaning to solid foods beginning at about 4 weeks of age. If they can stay with the mother and litter while weaning, this would be best for them in the long run.

AT 4 weeks old it is good to try to start feeding them so they can be weaned by 6 weeks old. Each puppy is different and may take to it a different times. I would try dry puppy food mixed with water so it is soft, then feed them. They may not eat at all and play in it. If that happens, skip a day or 2 and try again. You may have to place some in their mouths to teach them. They will still nurse despite being fed so it does not have to be a lot of food as they are little and can't hold very much. The better they get and the older they are, you can decrease the amount of water added to get them used to dry puppy food.

Yes you can start mixing dry food with canned food. You may have to soften it with some warm water at first but they should be able to transition to plain dry food pretty soon. I would put the puppies on puppy food to help them grow. I recommend puppy food until they are 1 year old. The mom should be on adult food now that she isn’t nursing them anymore. I hope this helps.

Milo should have teeth by now so either a starter puppy food from a high quality brand like Royal Canin, Eukanuba or Hills Science diet . Make sure it's a puppy Large Breed food as well. Natural Balance is also a relatively good brand of food as well. You may have to do canned food for a few weeks if puppy has a hard time with the dry kibble. Or moistening he dry kibble with a little bit of water is a good alternative to canned food. Best of luck with your new puppy! Here is more info on puppy nutrition. http://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=3501

Poor Blue! Small breed young puppies are delicate and they are extremely prone to low blood sugar if they don’t eat well. This condition can be fatal. There are many causes for vomiting including worms, change in diet, bacteria over growth and Parvo. I recommend to have Blue seen today by his veterinarian. It’s very important to get these little puppies eating and not vomiting to avoid low blood sugar. The doctor will need to run some tests to determine the cause. Offer him boiled white meat chicken and boiled white rice. This is a bland diet which can help to settle his stomach. Smaller, more frequent meals are better than two large ones. I hope this is helpful and please feel free to post any additional questions.

At four weeks of age, you should be able to start trying to mix in some solid food, or potentially a gruel with wet and dry food together. Dogs will start getting their first puppy teeth right around the age or 3.5 to 4 weeks so they shouldn't have too many problems with the mechanical digestion of the food. If you feel like the puppies aren't eating enough regardless and are failing to thrive, I would get them in your vet for a visit. Hope this helps.