Solo, I actually have four Boars, they're grouped in pairs of two. And in one of my pairs, is a Guinea pig who is 9 years old with a Guinea pig who is about 11 months now. The younger one is recently neutered, and I know I can't do anything for several weeks, however I doe eventually want to partner him with a female as he is generally very aggressive to other boars except this one. What I'm wondering is that even though the female would not be in the same cage, would my two other board fight if she is still in the same room or do I have to move them away to another room? Any advice you have on the situation please. Thank you!