The hamsters might fight for they are not from the same parent and if they have a great difference in age. To avoid this, first put them in different cages and switch them into each others cages until they become comfortable living in both of them. From this point, you can try introducing them to each other for few minutes then separate them. Learn more on how to do this through http://www.ehow.com/how_7671_introduce-hamsters-each.html.
1 year ago
Last edited at 10:18AM on 8/25/2012
They will most likely fight, but there is a good chance that they won't fight if they are raised together at a young age. If not, get a gerbil. Gerbils are almost the same thing as a hamster, but they are social animals, and enjoy living with another gerbil.