I don't actively check this, but if you a player ask for a pup that are labeled free and I see any of the pups that are born in my pack who are being actively sold and up for a trade. Any other pup you ask for, you will be denied from taking. I won't be naming names on here, but I do have a list. The pups born here are free all the time so players can have colorful 500+ stat pups. And if for whatever reason I do sell you a pup then you can do whatever you want with the pups.