HI there

I have 4 guinea pigs 2 males in one cage and 2 females in another. I recently got another female to add to the one we had as she was on her own. I haad no problem introducing them and they got on really well.
I was told by the pet shop that they might not get on and that i might have to keep them in a seperate cages. Its just luck really.

Thats my experience. There are people on here who know alot about guinea pigs and have had them for years so im sure they will be along soon to give you some advice.

I think introduce them slowely for a little while over several days.