I've always heard, and it was right with my other boxer, that if the coloring of their fur (fawn or brindle) extends to the nail, than the nail will be black. If the fur is white and extends to the nail, than the nail will be white. Same thing with the pads of the paw. If the pads are pink than the nail is white. If the pads are black than the nail will be black. I don't know how true it is, but so far all the boxers I've seen are like that. Buster had one black toe on his back paw, and sure enough the fawn coloring was on that toe!
Now everyone go examine your babies toes and paws and see if this is true! I'd love to know. :wink: