Hi, even if he grows a little more he will be smaller than your other dogs. Sometimes I am surprized when I ask how much a yorkie weighs, and the owner tells me 10 or more pounds. I have a 5 pound one, and these yorkies don't look much bigger than him, maybe a little stockier, but thats all. Good luck with your Snickers, he may be the full size bar, not the snack size; but he will be delicious anyway