Fighting

[Millie.2209]

My male Guinea pig is biting chunks of hair out from my other male Guinea pig and is really aggressive to him, however the Guinea pig that is getting chunks of hair out bitten from him doesn’t do anything and never fights with the other one , what should I do

 

[Piggies&buns]

It sounds like their bond is not a happy one.
How old are they?
I would separate them now. Leave them apart for a few days to calm down. Watch the submissive piggy during the separation. If he appears happier to be away from the other then that is usually enough to say their bond is dysfunctional and make the separation permanent. (The dominant piggy will be upset by the separation but it is not his reaction which you go by).

Doing the separation and neutral territory reintroduction gives the piggies a chance to make their own minds up about whether they want to be together.

If during a neutral territory reintroduction tensions rise again then their separation would need to be permanent and they will need to live in separate but side by side cages.

If, however, you can determine now that their bond is not working, then you can just separate them permanently now without attempting to reintroduce them at all. Bullying is a sustained behaviour where the underpig can become withdrawn, lose weight through not being allowed to eat enough, be chased around and not allowed to rest. That is grounds for immediate separation also.
Same applies in the case of an actual fight - do not attempt reintroduction

Piggies who need to live as neighbours each need a cage measuring a minimum of 120x60cm. The cages need to side by side so they can still see, smell, talk to each other and interact between the bars.

Bonds In Trouble
Boars: Teenage, Bullying, Fighting, Fall-outs And What Next?
Dominance Behaviours In Guinea Pigs

 

[Millie.2209]

Do I get the one tahts been friendly a New Guinea pig to live with since hes Done nothing to the other Guinea pig

 

[Piggies&buns]

Do I get the one tahts been friendly a New Guinea pig to live with since hes Done nothing to the other Guinea pig

It depends whether you want three piggies.
There is no need to get a third piggy if you don’t want to. Provided the two you have live side by side, then that is usually enough interaction between the bars. Two of my piggies who have to live like this due to a full on fight.

If you do wish to get him a new friend, then it would be safest to go to a rescue centre and enlist their help in finding a compatible character companion for him, therefore you don’t risk a further failed bond.

 

[Tigermoth]

Do I get the one tahts been friendly a New Guinea pig to live with since hes Done nothing to the other Guinea pig

Just stepping in to point out that this isn’t about one piggy being mean or a bad character. Piggy politics is complex and their hierarchy is absolute. Just because one was picking fights with another doesn’t mean that he can’t be with other pigs, it might just be he can’t be with this one

 

[Piggies&buns]

Yes absolutely.

These two are not compatible but it does not mean that they won’t both be compatible with other piggies.

If they are teenagers then sadly things can break down when the hormones kick in.
Boars can be bonded at any age but during the teens is harder - which is why it would be safest to find new friends via a rescue centre.

Often the most stable long term solution in this situation is (separating them) neutering them both, having the six week wait to become infertile and then finding them both a sow friend each.