I had a single ferret crete trained simalar like a puppy.
I used Techni cal kitten as its main souce of food. I found the ferret brand was too high in cereql products as a first ingreedient. Some like to mix the ferret brand kibble 50 50 with the Techni cal kitten. Change up the kitten to cat by 6 months Litter box train the ferret in and out of the create. Ferret proof the house