Okay I just rebonded my two boars as well.
If they are getting chunks of hair out of eachother you really need to watch them.
If they are fighting for too long, they will get really stressed out.
This is what I did for major success of my two boars.
- CLEAN EVERYTHING. Soap and water. Dishes, toys, beds, the entire cage. New litter, new hay, new food.
- Bathe them together. Tub or sink. No running water, the sound scares them.
- Do you have any vanilla extract? There is the science behind bathing together. Pigs will get along with another new pig if they smell like they are part of the heard. so you wash them completely so thier own oils are not as potent, and make them smell the same. After bathing dab some vanilla extract on your finger and just touch both piggies grease spots with it (its by their butt and greasy, where a tail would be if they had one) yay smell the same now.
-Introduce them to their new home, with TWO houses and TWO water bottles.
- They will spray and mark corners. The dominate one might do that to the sub one as well.
Watch them, if they draw blood, its over. You will have to separate them and just make a C&C cage with panels in between so they can still chat to eachother but not harm eachother. Like this:
https://www.guineapigcages.com/forum/attachment.php?attachmentid=61180&d=1392163641
Hope this helps you