Puppies, like kids, can vary a lot in their need for food. Some can't seem to ever fill up, and some eat so little you wonder what keeps them alive. When they're entering a growth spurt they will usually eat more and when they're done with one their appetite will usually be less again. The guidelines on the package are only averages. If he's still hungry, give him more... weight him weekly and check to be sure you can feel his ribs if you press in a bit, but you never want to be able to count them by simply running your hand across.
Let the pups condition and appetite dictate how much they need to eat. You'll both be happier that way.
Let the pups condition and appetite dictate how much they need to eat. You'll both be happier that way.