It's all personal choice. Majority of the time they end up playing with random objects you were about to throw away. A single unit would be enough for 2 in my opinion. Either way, they still need roaming time outside the cage. But the more the merrier.
answered 7 months ago
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I have 2 ferrets in mine along with one hanging tunnel, two hammocks, a large igloo, a large litter box, two food bowls, one water bottle 2 blankets and a handful of toys. We also sometimes let my miniature dachshund get in the cage with the ferrets, so there is plenty of room!
answered 3 years, 1 month ago
San Antonio, TX
9out of 10found this answer helpful.