Have you tried telling him no or using a squirt bottle? Hannah gets like this and if I can catch her in the act I squirt her. It’s really effective with her and after a couple times she stops doing it (at least for 5 or 6 months). Even though Panko wants to be in charge, maybe he needs to realize that you’re the one who’s really in charge and can put him in his place like he’s doing to Lago.

How do you catch them in the act when it’s a chase? You’re as likely to squirt one as the other.

My two does the same; the male will get aggressive with food. Sometimes I separate them when feeding. Lately, I have a large diggy box filled with paper I wadded up. I sprinkle pellets inside and the male will immediately go in to search/eat. I then give food to my female.

It’s not too hard – Otto is usually fairly out ahead, trying to jump in the maze or whatever to get away from her. I only squirt her if she is actively doing it, but often just grabbing the bottle stops her in her tracks. It definitely doesn’t work with every bunny – some become afraid and some just don’t care, but it’s been very effective with Hannah.

Not sure if this would work but you could feed Panko first, Lago second, and then when Panko goes after Lago, take both food dishes/treats away. Reinforce the idea that he may only eat when he’s behaving. I would separate them as a last case scenario. You also want to make sure that all good things happen when both Lago and Panko are together and being nice.

Tate, I like the way you think. I would definitely try that.

Other than being neutered, has he had any surgeries? You can give him a thorough check- start as his head, feel his cheeks, play with his ears, move down the spine and feel for anything unusual in his belly. And play with his legs a bit.
The same sort of thing happened with Velvateen and Fievel. They got along great and one day completely out of the blue, Velvateen started to attack Fievel. This was in April and I am now going through the process of rebonding. I took Velvateen to the vet because he was the one that started it and they did xrays and a general physical exam and nothing was wrong. Bunnies… *shrugs*
You may want to try to nip this in the bud and get them to a neutral area. Go back to the basics- banana on the head so they wash each other and you could try other treats, if Panko allows it. I would still try to make this as positive as possible- no spray bottles or anything to piss them off.
It’s always a good idea to take these little mood swings seriously. I took V to the vet and although nothing was wrong, it put my mind at ease that he wasn’t in pain. Then you can go from there.

I’ve heard that could definitely cause issues between them. I’ve also heard that some bunny relationships are like that- one tends to nip and chase the other but as long as it’s not too aggressive and no harm comes to either it’s fine. That would definitely be a question for someone else though… :\ Sorry for the lack of help.

Eddie was a bossy little punk to Lolli. And to me. He’d chase and nip Lolli away from stuff. I think just because he could. He also got bad about nipping ie biting me.

It could be that he smells the other rabbit and that’s making him “act out”. Or he’s just being a bossy little poophead.

I think as long as he isn’t full out attacking or preventing her from eating, etc. then they should be fine. Eddie ALWAYS chased Lolli off but she usually just circled back around and got to the food. It also sort of helped having two food bowls. I mean, he still chased, but seconds later, they’d be eating out of the bowls or one bowl. lol It also helped that you don’t get between Lolli and her food. She likes to growl when she first starts eating to let everyone know to leave her alone. haha