I am feeding him Pro Pac Small Breed Puppy food. That is what he was on when I got him and he is doing very good on it. He's definitely growing well. And I read some reviews on it and it is rated very well on dogfoodadviser.com (5 out of 5 stars). Sometimes he'll just go nibble on it and sometimes he eats a good chunk of it.
But it's almost always gone by around 3. I didn't know if I should just give him 1 cup and that's it, or if I should top it off when it's gone. He's very active and he poops 3 times a day (8am, then again around 9:30am and again at around 4-5pm). And his times are always like this. I love it.
I felt his sides (they say that's how you can determine if they are eating enough) and I can feel his ribs still (he's not got too much fat on him), but there is still a thin layer of fat over his sides. Which should be about perfect. This might be a little more helpful information.