Join Date: May 2011
Location: Northern California
He's cute and not skinny at all. Who told you he was too thin? I find that people are so used to seeing fat dogs that they don't realize what a healthy weight looks like.
When looking at your dog from above, he should have a waist, a dip behind his rib cage and before his hips. You should be able to feel his ribs easily, and you might even see the last rib or two before you need to worry about him being too thin.
It's best to keep a pup on the lean side as he grows, so that his developing bones and joints don't have excess weight and stress upon them.