Have my boys had a fight?

[muchiemul]

I went to my boys hutch to give them their new treats today after I had been out shopping and I noticed blood on the wire, bed and roof of their plastic hideaway.
I then noticed blood on fluffy. I looked at him and noticed he had loads of blood in his ear. Not sure if he has something wrong with his ear or my boys have been fighting? He is grumpy wen I pick him up and tried biting my jeans!

My other guinea pig is the boss and does grind his teeth at fluffy sometimes but apart from that they are fine together. They go out everyday in their run and come in the house for a run most nights and share food.

Do you think they are fighting?

p.s they are about ten months old and I had them about a month ago as they were unwanted. x
Thank you for any help!:{

 

[Niki]

If there is nothing he could've caught himself on to cause injury then it is likely your boys have had a fight especially given their ages.

You can clean Fluffy's ear with salt water if you haven't already & I would monitor them. If wounds are inflicted again it is best to separate.