Introducing a new Guinea Pig to old Guinea Pigs?


I have two male-7 month old Guinea pigs. I have had them for about 2 and a half months now, their cage is getting a bit small for them, so I am going to build them a two-story C&C cage, where they would each have their own level, but they would still go out in their exercise pen together. I am also thinking about getting another male Guinea Pig. In which case I would make it a three-story C&C cage for them, where they would all have their own level. Cleaning their cage isn’t a problem, neither is vet expenses, or supplies, and food.
Anyway, If I did get another male Guinea Pig would I need to introduce them to my other Guinea pigs? Or could I just let them live separate lives? But if I did, would the old Guinea Pigs smell the new one and get all mad? And go "crazy?"
Will my Guinea Pigs not like me anymore if I get a new Guinea Pig?

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4 Responses to “Introducing a new Guinea Pig to old Guinea Pigs?”

  1. Kimberly Savino says:

    First, I don’t believe that guinea pigs should be housed together. While they are herd animals, and definitely benefit from daily supervised interaction, the key here is the supervision. Allowing guinea pigs to share a cage brings about a few problems:

    1. All guinea pigs are different, and some may have compatibility issues, especially males. This can lead to fighting, and painful, costly injuries to fix;

    2. Guinea pigs are creatures of prey, and often try to mask their symptoms if they feel unwell. The best way to identify a guinea pig who is ill or in pain is to check for a change in food and water consumption. If you have more than one pet in a cage, it’s difficult to impossible to assess how much the guinea pig is taking in;

    3. Illnesses like respiratory and GI tract infections are spread more easily among guinea pigs who are housed together;

    If you’ve devised a playpen for them, it’s fine to let them interact under supervision each day…However, I’d recommend strongly against housing them together. I am not familiar with the type of cage you mentioned, but please remember that guinea pigs must NEVER be housed in a wire bottom cage. The grate can entrap the pig’s foot leading to a broken limb, and sitting on a hard surface will inflame the foot pad, and may lead to infection.

    And no, a guinea pig will not abandon you if you adopt siblings for him. If you spend time with your pet on a regular basis, he’ll remain just as friendly as he always was. The only time that people run into problems with this is when the other guinea pig becomes the sole source of interaction. This can cause a guinea pig to become shy around people, as they aren’t used to interacting with them. Hold them every day, gently, whether they seem to enjoy it or not. Pet them gently, offer a bribe (er, treat) if necessary, and your pet will come to associate time spent with you as being pleasurable and fun.

  2. poprocker12 says:

    i had a guinea pig for a year and i got a new guinea pig (both female) what u should do is let them all on the ground and let them sniff each other and stuff let them see each other and play with each other. your guinea pigs will not get mad they’ll just think of it as another friend. my 2 guinea pigs are great together. yes i recommend u let them smell each other and see each other.

  3. Justified says:

    It is my personal opinion that ALL piggies should have a buddy. They are very social animals and do best in pairs. However, when dealing with boars, this can be tricky. Because you already have two bonded boys, bringing in a third one may cause problems. Or it may not. It just depends on the personalities of your two resident boars and the personality of the one being brought in.

    If you are intent on doing this, I highly suggest finding a reputable guinea pig rescue in your area. They are usually really good at helping you find a good match, personality wise.

    If your new C&C cage has levels that prohibit your two boys from seeing each other, you may find that when you put them in the exercise pen, they might not get along. Guinea pigs have fairly short memory spans, so unless they are together (seeing, smelling, playing) all the time, they forget they know each other and may require repeated RE-introductions each time you put them back together. I hope that made sense.

    There’s no doubt your two resident piggies will detect a new piggie in the room, but unless its a female, they won’t go "crazy".

    Good luck!

  4. Carol says:

    As long as he is in his own cage and only with the others in the play pen it should work out OK. May i suggest though before you put them all into the play pen that you clean it with vinegar and water so it does not smell like "theirs" to the old guys and they feel they have to defined it.

    There was a case on answers must a few days ago in which i got best answer for where they introduced a third guinea pig and the lost total control of all three, it in just animal instincts, they start to take on herd behavior. You are however talking of not housing them together so i think you may have a chance.

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