Welcome to the forum
How old are they?
While dominance behaviour is totally normal, an actual fight is not.
An actual fight means they sadly don’t like each other and I’m sorry to say they must be immediately and permanently separated.
Things don’t get better after a big fight. They occur due to their inability to form a hierarchy and that won’t ever change.
As they need to be separated, they must be side by side. This means they cannot live in a two storey cage (if that is what you meant).
They must be side by side on a single level so they have 24/7 interaction between the bars.
If you made the cage two storey with one living on the bottom level and one living on the top level, then they lose all ability to interact and they would become very lonely.
Each piggy needs a minimum of a 3x2 c&c each (ideally a 4x2 each).
1 The hormonal teenage months
- What are the most difficult times?
- What are your boars' chances of making it together?
- What can help to boost your boys' chances?
- What does NOT work?
2 Fighting, bullying and when to separate
- What are the signs of a dysfunctional bond?
- How can I test whether a bond is no longer working?
- What to do if your boars had a bloody fight?
3 Life after...