I did what you say, I took an old shoe box and put two out of the three hamsters I have together:
Attempt number one was a young hamster I have and the new one together in the box. They approached each other and started fighting... I seperated them and put them together again and the same thing happend, on the third attempt they went to each other, sniffed eachother and stopped fighting... Now I took the young hamster out and took the old hamster and put him in the same box with the new hamster. They started fighting and I seperated them on the second time I tried they faught again and on the third time after I seperated them the young one attacked the old one really badly and bit his ear really bad and didnt release. I had to gently release them by hand... Put everyone to their original places and there's quiet now. My question is:
Why did it happen? Why the first ones didn't fight after 2 times and with the old hamster they faught so bad that now the old hamster has a red ear and a small biting mark because of the new hamster? It's in teresting... I thought about putting the two young hamsters together in the big cage because there are a lot of activities there that the old hamster isn't using because he's plain old and he has bad eye sight... But what I really fear is that the two hamsters will start fighting again and I wont be able to put them apart... Your opinions please.