Introducing chinchillas - possible?

YOu can but you need to be really careful best to have a couple of people your chinchillas know to help with the inorduction. It might take a little time. They are best together if they are all neutered as well. Start off by putting their cages next to eachother so they can see eachother everyday. Then Get them out and hold them in different hands. Then Put them close together and let them sniff eachother. The after a few weeks of that if they seem to like eachother put the on on his own down to run then let the others play. If they start nibbling immediatley split them up. Hope that helps a bit. :)