I rescued a group of four chinchillas a couple of years ago which consisted of parents and their off-spring. Both males had been castrated, but they were constantly arguing and both were badly fur chewed. They were living in a cage no bigger than I would keep a pair in.

Once I separated them into pairs (male/female) the fur chewing ended.

I have always been able to keep several females together (with or without a male), but I was told 2 males should never be housed together near females. I have never tested out the theory so I can't say whether it's true or just another chinchilla myth (years ago I was told two females could not live together without killing each other)

John Hopewell makes cages to suit everyone's needs - and will even make them to your own requirements
John Hopewell (Marketing) Rotherham South Yorkshire, Chinchilla Cages - Degu Cage - Degus Exercise Wheels - Cages - Animal Cages - Rat Cage - Ezi-Filla - Ezi - Easy - Automatic Water Drinking Systems - Guinea Pig Runs - Rabbit Feed Hoppers - Birds -