With separate sides and protection
because guinea pigs are aggressive
I have tow male Ginny pigs an i keep them together and they are fine.
guinea pigs and chipmunks should not live together.
Yes the minimum for two guinea pigs is 7.5 feet so that's a good cage.
If I undersstand your question correctly, I think you're asking if guinea pigs need to live with a roommate. Guinea pigs don't need to live with roomies, but they are most happy when they have a buddy. Obviously, you shouldn't put a male and a female guinea pig in the same cage. Two girls will be less aggressive than two boys.
No. That is torture to a guinea pig. Guinea pigs need a huge cage 7.5 feet is recommended at a minimum!
Put one in a different cage
Depends on the Guinea Pig - also on the cage. I keep my guinea pigs in an open-bottomed cage.
No its not, i guinea pigs cage is way bigger. & you should not have the same size of guinea pig cage as your hampster.
No, they tend to fight.
Sure! I have 3 males in one cage right now! The squabble some but they can get along fine!
Try, but watch them closely. Many will fight.