It's good to quarantine the new ones for a week. Keep them in different areas of the home. You can let the new one play in the same area, but don't let them use the same water/food/litter box. This way if the new ones are sick it won't give it to the other one. This would cut down on yours getting ECE, parasites or bacterial infections. If I would not have quarantined the two we got from someone I would have had 5 with a bacterial infection and force feeding 5 every two hours for a few days. This is no fun at all. I've felt so bad for the people I have talked to who didn't quarantine and the new one had ECE. You might let your ferret pick out the ferret it wants. We like boys better because they are bigger in size. Our two girls are so small. Some pet stores will let you have one of yours play with theirs. All shelter's let you bring one with you so your ferret can pick out the ferret. Any age is fine. Just if one is bigger in size you might have to wait awhile to let them sleep together. The first girl we got we had to wait for a month to let her sleep with the other two. She was too small to defend herself. We did let them play together supervised. Shelter's are better really. The person can tell you all about the ferret you want. Personality and other things. Some shelters are so overloaded with ferret's. Plus, some have late spaying and neutering which is much healthier then MF's kits. Email me anytime. Not sure you have seen two ferret's play but they play rough and many are surprised and shocked at this. Watching two play and sleep together is alot of fun.. Thanks for considering having two of them. They are much happier having a friend. Debbie [Posted in FML issue 2741]