Ok, so a couple of month ago, I got 2 male dwarf hamsters dumped on me (they couldn't find a home and I felt bad for them going backwards and forwards so I took them in). Everything was fine between them, they had the odd little scrap but it was very rare. But now, the pecking order has changed. The white one is now above the brown one and is being really nasty to him. The brown one has even moved his bed to a different side of the cage. I think the white one has bit him in his privates in between his legs too. The white one will also pounce on him when he is running on the wheel even though there is another one and theres also fights several times daily. Should I seperate? Would they be upset if I seperated them? Should I give it another few days just in case the white one wants to feel secure as the boss?