I have two male guinea pigs. One is about 7 months and the other is a year and 8 months old. We introduced the younger one to the older in neutral territory etc. and they have always got on really well. They shared a house because when we initially put them in separate ones, they relentlessly tried to escape to see each other, and since then they have followed each other about all day, snuggled up together, shared food etc with no problems apart from some general rumblestrutting and normal behaviour. Then, last night while they were both roaming about the living room, the younger one began to chatter his teeth at the older one, puffed himself out and chased him around for a while. The older one didn't respond and we just ignored it. When we put them back into their house though, they began showing their teeth to each other, continued both teeth chattering and quickly began to attack each other, with the younger taking chunks of the older one's hair. We put them in separate houses next to each other overnight and they were fine, though seem quite sad, but as soon as they see each other, even in neutral territory, they just teeth chatter without stopping and ignore or chase each other.
Has this happened to anyone else? I'm worried that they won't be friends again and we'll have to keep them separate from now on, but the older one loves spending time with the younger one and I don't want him to be lonely if they can't even go near each other without fighting.
Has this happened to anyone else? I'm worried that they won't be friends again and we'll have to keep them separate from now on, but the older one loves spending time with the younger one and I don't want him to be lonely if they can't even go near each other without fighting.