I just got back from helping feed them. They have rick rack around their necks to help tell them apart and right now black, blue, green, teal, and purple are the heaviest out of all 13.
Oh, my gosh! The cutest flippin' english mastiff puppies were just born last Friday! They are all about a pound in weight and 4 - 6 inches long. I will post pictures if and when I can!