It has been brewing for a couple of days but early this morning they were squaring up to eachother, teeth chattering from Lennie and Timmy was attacking him. This went on for a 15 minutes or so and I have now reluctantly separated them before blood was drawn as I am sure it would have been. Timmy is a little over 3 months old, so a teenager in guinea pig terms. Is there any hope do you think? It now means I have to build a top floor on the c + c as I dont have enough space to go sideways. I am sad about this as floor time will have to be reduced for each one. They used to be so happy together and it was cute to see Timmy following Lennie everywhere and copying him :'( My OH is now on his way to B & Q to hopefully find some cubes, Timmy is in their cage and Lennie is under the couch and wont come to me