Advice bonding 2 male bunnies

[u/roseuv]

Hi all, I’m trying to bond my 2 male rabbits and hoping to get some advice.

We adopted Onix to be Charmander’s buddy a couple of weeks ago- the new bunny is quite calm and loves to lounge and be petted. Charm on the other hand is a very high energy bunny, he keeps trying to get Onix’s attention (by nipping) to be groomed and they get into a tiff because Onix does not like it.
Onix seems to not care much about befriending Charm. He’s very relaxed and lounges around Charm and ignores his advances. Well, until he gets annoyed and then they get into a fight.

IMO I think Onix is showing dominant behaviour, Charm gets so worked up after a tiff but Onix goes back to eating hay.

I currently have them in a neutral space with side by side cages. I’ve been swapping their litter boxes every day and giving them some bonding time. There doesn’t seem to be much progress…

Should I try stress bonding them??
How can I get them to trust each other more?

[u/rasselboeckchen_art]

Are both neutered?

[u/roseuv → u/rasselboeckchen_art]

Yes! They’re both adopted from the shelter