The genral thought is don't keep rabbit and Guinea pigs together, as a rabbit can bully a pig and do them some harm or even kill them. However having said that this is a few peole on here that keep them together, just can't remember who it was :roll:
How long have they lived together?
Edited becasue I have just read that they are both under a year old. The trouble is the rabbits hormones will be kicking in big time now and she will no doubt try to mate with the Piggie, this will cause him much distress.
This is the problem with some pets shops they keep these animals together in the shop which gives out the wrong message to people. The RSPCA advise that rabbits and Guinea pigs should not be kept together.
I really dont think they are to old to seperate, is there anyway you could make their new home so they could still see each other but have wire mesging between them?