Join Date: Jun 2008
Location: SJ Newfoundland, Canada
Bottom one. Hands down. The plastic in the top one will get chewed, not sturdy enough. The second one looks like another model of the last one. So that one is fine too. Third one is not tall enough nor wide enough imo to allow zoomies and jumping. The last one is large enough for a cat litter box as the rabbits box- this is good for space and because bunnies like big litter boxes. One side for their waste and one side for their hay. Those small corner ones made "for" small animals are a waste of money.
No I don't keep my pets in the basement, we ALL live in the basement together!! (basement apt lol) Bunnies are social complex mammals. They like to be in a busy room to hear what's happening. They love to run around and interact with the family. I would never keep my bunny in a room that does not receive a lot of human traffic.