Congrats! I hope they settle in quickly and easily.
Is it hard to introduce ferrets to other ferrets??
Nope not at all, I introduce cage to cage since I quarantine any new ones. The two cages are put close enough together for the others to get the new babies scents and interact without getting to close.
Once quarantine is up then the new babies meet with the current ones with my close supervision. Not hard at all. At least it has never been for me.