Guinea pigs <3
Senior Guinea Pig
Before I got my girls a number of people told me that guinea pigs smell - only if you don't clean them out very often! :p
I heard from some people that aquarium tanks are actually well ventilated because if they roof is open wire or whatever then the air gets drawn up and it circulated well . . . ? I dunno, I don't really like the idea of them though, being stuck behind a glass wall . . . I prefer cages, even for hamters and alland then you know there's loads of ventilation cos it's all open.