Hi! Im still new to this and posted an intro in the general discussion forum. I just came home from the groomers (my first time) and she mentioned my yorkie had short hair. I was looking at all the pictures on the forum and noticed how long, silky, and beautiful all the other yorkies looked. Well kodak is beautiful, but his coat is short (shorter now that its groomed

) and wiry. Its not silky smooth, rather a little rough to touch. Is this due to his diet? Or is there a product or supplement i can give him to make his coat look like the other dogs i see on here? Thanks for the help!