Hi - I was wondering if someone could give me some advice please. We have two boys around 6 months who were bonded nicely. We introduced two more boys who are around 12 weeks and they seemed to get on really well - the usual dominance mounting etc but they seemed happy. However, it seems the two older boys have now fallen out. They are chattering teeth at each other and even lunging. It seems like each has taken one of the little ones under their wing. I have a two-floored hutch so have split the boys with what seems to be their chosen younger companion. Is this the right thing? Could they ever live together again? I know that one of the older boys is upset as he literally jumps into my arms bless him. I also feel bad that I have split the younger ones too. I have ordered two indoor runs which are a kind of mesh walled so I can have them side by side so they can see each other - currently in the hutch they can only hear each other. Not sure if I can build the bond back up or what to do for the best really.