One of my pigges passed away so I got my Pigge a friend so she won’t be lonely but they are teeth chattering and pulling hair!

[2.pigges.in.a.pod]

so sadly one of my guinea pigs passed away due to old age and she was bonded with one of my other guinea pigs so now that guinea pig is by itself so I just went today and got another guinea pig so she wouldn’t be lonely and I put them in two separate cages to start bonding, but to where they could still see each other and get used to each other smells and I put them in my lap together to see what they would do and they started teeth chattering and pulling out each others hair! Help what do I do!

 

[Piggies&buns]

I'm sorry for your loss and welcome to the forum.

Did you check the sex of the new piggy yourself to confirm it is also female?

When bonding, it is done in a specific process. Putting them in side by side cages doesnt really start the process - it just allows them to know there is another piggy in the vicinity. The bonding doesnt really start until they are put into a neutral territory bonding pen for several hours.
They need to be put into a neutral territory bonding pen (somewhere your original piggy does not see as her own territory) together for several hours (overnight if needs be) so they can see if they like each other, accept each other and will be able to form a bond and hierarchy. On your lap isnt going to give then freedom of movement and the hours they need in the bonding pen to see if they will work together.
If they accept each other then you thoroughly clean down the cage they are to live in (so the original piggy who lived in the cage no longer sees it as her territory) and then after several hours in the bonding pen they can be moved into the cage to start their life together. You will see a lot of dominance behaviours during those hours in the bonding pen as well as the following two weeks after a successful bonding as it takes that long for them to establish a relationship.

Unfortunately, buying another piggy on spec does mean you run the risk that they will not like each other and will not bond. They have to be compatible in character to be able to form a relationship and if they dont like each other upon neutral territory introduction, then the bonding will fail and they must live in side by side cages permanently so they can only interact through the bars only.

Look at the guides I have added in below so you can gauge where things are between them to help you decide if things are normal bonding or if they are actually failing.
Nipping and a bit of hair pulling will happen but if they are both doing it aggressively and neither is going to back down, then that means they dont like each other and would need to be kept separately I'm afraid.

Bonding and Interaction: Illustrated social behaviours and bonding dynamics
Dominance Behaviours In Guinea Pigs
Sows: Behaviour and female health problems (including ovarian cysts)

 

[2.pigges.in.a.pod]

Ok thank you so much that helped a lot!

 

[2.pigges.in.a.pod]

Also yes they are both girls, they have been together in a bonding pen together for a couple hours in a space where neither of them have been before,their has been no fights and no teeth chattering,they are even sharing a salad! But what is the next step?!

 

[2.pigges.in.a.pod]

Also yes they are both girls, they have been together in a bonding pen together for a couple hours in a space where neither of them have been before,their has been no fights and no teeth chattering,they are even sharing a salad! But what is the next step?!

So umm they just fought lol I separated them and let them calm down and then five minutes later I put them back together

 

[Piggies&buns]

How have things been since?
If they have had a full on fight, then it’s best not to put them back together again. A full on furball fight is a clear sign they don’t want to be together and that they must be kept separate.

 

[Swissgreys]

So umm they just fought lol I separated them and let them calm down and then five minutes later I put them back together

Please read the bonding guides linked to above fully.

They clearly explain every step and will help you decided if your piggies are going to be able to live together.
Given that they have had several fights now it does sound like this pairing may sadly not work out.

Bonding is a complex process and simply separating and putting them back together after every fight will not work.
However it is also important to understand what a real fight is, and what behaviours are a normal part of the bonding process.

Please read the guides before going any further so you have a clear picture of the warning signs and can make sure neither of your piggies gets seriously hurt.

 

[2.pigges.in.a.pod]

Please read the bonding guides linked to above fully.

They clearly explain every step and will help you decided if your piggies are going to be able to live together.
Given that they have had several fights now it does sound like this pairing may sadly not work out.

Bonding is a complex process and simply separating and putting them back together after every fight will not work.
However it is also important to understand what a real fight is, and what behaviours are a normal part of the bonding process.

Please read the guides before going any further so you have a clear picture of the warning signs and can make sure neither of your piggies gets seriously hurt.

They are bonded now thank you!