Possible guinea pig fighting?

[Lotteluvspigs]

2 days ago I got new foster pigs (both females) and I've noticed on of the pigs (Crystal) is really mean to the other pig (Chloe) I know there just foster pigs but I want what's best for them or just recommendations. Okay what I'm talking about is that crystal will come running into their fabric house while Chloe is in it and just start pecking her until she leaves (she usually won't Until I get crystal to shoo) and she starting squealing really loud, now the owner did say she was a dramatic pig but I'm not sure if she is in this case. I looked online and can't find anything about pecking just biting and I'm really not sure if crystal is biting Chloe or it's just a different way of showing dominance. She usually pecks around the ear and I don't see any wounds.

 

[Piggies&buns]

This is dominance behaviour, not fighting.
Now they have moved into a new environment, they will be in a period of reestablishing their relationship. This happens in any new territory.

The dominant piggy (crystal) will get the pick of the best hides. The submissive piggy (Chloe) will be told to leave a hide and she is responding by squealing. The squealing is called submission squeaking and is absolutely the right response for her to make.
There is nothing to worry about.

Are they their own hides or ones you have provided?
It is best to only use hides which have two exits so the submissive piggy cannot get trapped inside it by the dominant piggy and always has another exit.

 

[Lotteluvspigs]

This is dominance behaviour, not fighting.
Now they have moved into a new environment, they will be in a period of reestablishing their relationship. This happens in any new territory.

The dominant piggy (crystal) will get the pick of the best hides. The submissive piggy (Chloe) will be told to leave a hide and she is responding by squealing. The squealing is called submission squeaking and is absolutely the right response for her to make.
There is nothing to worry about.

Are they their own hides or ones you have provided?
It is best to only use hides which have two exits so the submissive piggy cannot get trapped inside it by the dominant piggy and always has another exit.

They are my own hides and are 2 sided! Also thank you for this information I was getting a bit scared.