Hi there, I have zero experience with trios but I will say the bad fight they had could be causing the issues you are having. Trust is so important with bonding so if that was lost it can make it very difficult but not necessarily impossible. Sometimes bunnies just don’t click even without having a prior fight. With that said most bunnies are able to be bonded. It just can take a lot of time, work and patience. I will add, however, that I don’t hear about many trios of all males.

I have seen some people say separating them completely for an extended period of time can help them forget, but then I’ve also heard that bunnies are like elephants and they never forget.

Could you describe what kind of process you’ve done to bond them so far, including anything you’ve done for prebonding? How are there current living arrangements set up?

I have a trio, and had a similar problem. I had two boys, who were both very easy bunnies and got along with anyone, then I had Luna, who hates all bunnies until she finally learns to trust them after lots of aggression. She had already been bonded with one of the boys, but their bond broke when I brought the third rabbit home. However, when I started the trio bonding I found she didn’t mind the bun she’d previously been bonded with too much. So I knew that most of my bonding needed to focus on her and making her comfortable.

The first thing to note is that its actually important to work with a trio as a trio, as their interactions around each other change. It might be worth doing a couple of individual sessions with Patch and Nico so you can see how they interact, and work out any triggers for fights, but after that you should work with them as a group. Hopefully Rory will be a calming influence.

Have you done any prebonding to get Patch and Nico used to smelling each other? That’s a really important step that helps calm them down. LIke Doodle said, it would be good to know what you’ve done so far.

What I’d recommend for anyone is very short intros in neutral space. Keep your hand between Patch and Nico if you’re worried they’re going to fight, and literally just get them used to spending a minute together without fighting. Do this a few times a day, and graduallly increase it to 5 minutes, 15 minutes, half an hour. If you have an aggressive rabbit, in my opinion, there is no harm in keeping between them and stopping them harming each other. It teaches them that they can be around each other without violence, and teaches them that the other is not a threat.

This will take a lot of time and patience, but it should be possible

Ok, so since they’re good for the first 5 minutes, I would keep doing multiple 5 minute sessions a day. You can also try and deter Nico from humping before it happens. You can also just gently push Nico off when he starts to hump.

What about a pile of hay or veggies to share?
Have you tried smushing them together and petting them for a few minutes?
Is the third bun involved in this at all?

Bonding is a bit of trial and error, so don’t be afraid to try a mixture of the things suggested above and see what works for them.

If veggies cause issues, you could try a big pile of hay instead.

I would recommend doing 5 minutes multiple times a day if you can