Quote Originally Posted by Jay_Bunny View Post
I was trying to think of a way to mark holdbacks from litters. Would using permanent marker on their fur work?

Also, I tend to have albinos from time to time and I can never tell two female albinos apart. Would dying a small portion of their hair work (Like a dot on the head) or something similar?
I would use different color sharpies. i know the rat breeder i talk to does it and her rats are fine. you put a dot on the base of their tail, they dont lick it off and it stays put for a day or so. the dye doesnt work as well.