coco was "i think" right around 6 months old. i forget the exact age. Cainan hasnt been yet and im still not for sure what i want to do with him, he's not aggressive at all(coco is the dominant one...she prooves it ALL the time) and he's just a sweet as can be, never marks his territory just does his business then off to the next tree to sniff or puddle to play in, he's almost 10 months now. and corona isnt old enough, i would never do it any earlier then 6 months anyway. I want to get corona healthy before i throw something like that in the mix!