Some Yorkies have a silver or light blonde coat. There is nothing to "fix", it's just their natural coloring and it does become more apparent as their puppy coat grows out or is cut off. The dog in my avatar is one of those. She started off the traditional black and tan and then started to show "gray roots" at about 16 weeks. Now she's completely blonde and gray.
__________________  Don't get your knickers in a knot. Nothing is solved and it just makes you walk funny. |