If they do start fighting again you should separate them and it may be worth taking the aggressor to the vet. There is a chance your Pigs might not be able to live in the same cage.

Usually, fights break out because the cage is not big enough, they have been paired incorrectly, a guinea pig is sick or injured, or they are bored. You can prevent your guinea pigs from fighting by making sure their cage is big enough, and they have lots of things to keep them busy.

5 reasons they fight are Injury, Pairing, Cage too small, Mating and Boredom. To tell, monitor their behavior over time. First off, make sure that what your guinea pigs are doing is actually fighting. More common than fights among guinea pigs are domination behaviors, which they use to work out their hierarchy.

Have patience, take your time, always do this on neutral territory, and don’t give up too soon. Bonding may happen in one afternoon or it may take months. What you don’t want to do is plop the new guinea pig into your existing guinea pig’s cage. Never try to introduce guinea pigs in one of their cages.

It can take a guinea pig anywhere from three days to as much as three weeks or more to get used to their new owner. While that can sound like a long time, try not to get too discouraged if your guinea pig takes that long or even longer before getting used to you.

Asking How to Bond with Your Guinea Pig?

1. Lay down some fleece liners and lay with them to bond with your guinea pigs.
2. Hand-feed them veggies, treats, or hay, to increase bonding with guinea pigs.
3. Talk to them so that they recognize your voice, so that guinea pig will trust you.
4. Conclusion.

In most cases, vocal confrontation and some humping and chasing with rumbling noises are some common signs of guinea pig dominance. Some sows do get into a severe fight to prove their dominance, but in most cases, they sort it out by chasing and humping on their back only.

Guinea pigs will try to establish dominance and nose nudging is one of the ways that they can try to show dominance over each other. That being said, it’s also normal for a guinea pig to nudge you with their nose when they’re trying to show you some affection too.

The mounting is never sexual and should not worry you. It just means that they are trying to mark their territory by showing the weaker one that they are in charge. This behavior in guinea pigs can also mean that the dominant one is showing the dominated companion that they are on top.

Re: How compatible are 3 male guinea pigs? You shouldn’t do it at all. Three boars almost NEVER works out, and if you do try to introduce another, you may ruin the relationship between the two you’ve got. It’s also possible to wind up with three solo pigs, none of which will live with another pig.