Carlton1
New Born Pup
I adopted Carlton from the shelter 3 months ago and they said he was 1 year old (no idea of his birthday). The lady said he chased around the male he came in with, so they had to separate them. She said he would be fine by himself. I didn't know a ton about them, so I adopted him. He has a 5X2 cage and everything he could want, but about a month later I realized he was probably lonely. Someone told me to adopt another male and keep him in a separate cage, then let them play together. I did that, introduced them on neutral territory, etc and the new one attacked Carlton. Bit his face and made him bleed. He would just tear up his entire cage, so I called the SPCA and they told me to bring him back. He was just too aggressive 
My friend then had me watch her 3 month old male for a few weeks and I put the cages together. I let them play but Carlton just tried jumping on him and chased him around the entire time. They didn't fight but didn't really play together either. Carlton started eating peppers and things he didn't eat before. Then the baby left and he has just been sleeping all day. He isn't eating peppers anymore either. He still eats a lot but sometimes just chatters his teeth when he has food, water, hay, etc. I feel like he was happier with another Guinea Pig in the room but i'm not really sure what all the noises mean. Also, I have read that most guinea pigs sleep all day and as long as he's eating, drinking and gets floor time, he's fine. I work from home and take him out occasionally, then my kids do when they are home. I have two dogs as well, so I can't just let him run all the time. Some people say they are fine by themselves with enough attention. I don't want to have 2 separate cages and have 2 males that will potentially not even get along.
I was thinking about neutering him and getting him a female friend. It's over $500 where I live for the surgery, but I don't want him to live alone for the rest of his life either. Any advice? Would he be able to eventually be caged with another female? I have an addition I can put on the cage with a divider at first. It's a lot to go through if he may not be able to live with her either.

My friend then had me watch her 3 month old male for a few weeks and I put the cages together. I let them play but Carlton just tried jumping on him and chased him around the entire time. They didn't fight but didn't really play together either. Carlton started eating peppers and things he didn't eat before. Then the baby left and he has just been sleeping all day. He isn't eating peppers anymore either. He still eats a lot but sometimes just chatters his teeth when he has food, water, hay, etc. I feel like he was happier with another Guinea Pig in the room but i'm not really sure what all the noises mean. Also, I have read that most guinea pigs sleep all day and as long as he's eating, drinking and gets floor time, he's fine. I work from home and take him out occasionally, then my kids do when they are home. I have two dogs as well, so I can't just let him run all the time. Some people say they are fine by themselves with enough attention. I don't want to have 2 separate cages and have 2 males that will potentially not even get along.
I was thinking about neutering him and getting him a female friend. It's over $500 where I live for the surgery, but I don't want him to live alone for the rest of his life either. Any advice? Would he be able to eventually be caged with another female? I have an addition I can put on the cage with a divider at first. It's a lot to go through if he may not be able to live with her either.