QUOTE(sharkie28 @ Jan 18 2009, 02:49 PM)
if they're syrians you MUST separate them. syrians are baciscally solitary. but, if they're dwarfs there maybe other factors like food,cage size or else.
hope this helped.
Yes you must separate if they are Syrians .
Dwarf hamsters also you must separate. Yes that goes for Russian Campbells and Winter Whites.
Only Robos can stay together if from young and are siblings (this also works for Winter White) as they might fight when you try to put another with an age gap. They are territorial animals.
Added on January 18, 2009, 3:50 pmQUOTE(ekroyorke @ Jan 17 2009, 03:54 PM)
my hammy suddenly turned aggressive towards her bf..
is it a sign??
i hav put them in the same tank since last 7months..
but they never had babies..

A sign for? Marital dispute?
Hamsters are not human. So they don't have feelings like us humans. They only have animal instincts.
They don't need companions with them. So they don't care if they are gf, bf, husband, wife, father, mother, uncle, aunty, etc... they will still fight.
So please do the right thing and separate them into different tanks/cages.
This post has been edited by blurjoey: Jan 18 2009, 03:51 PM