What are they doing?

[Sundowner]

Suddenly my two arowanas. One green and one pearl have been doing this. By now they have shared this tank for about 2 years. But as of late they've been doing this. Just wondering why the change In Behaviour.

6 May 2023

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[Midwater]

Politics? Two big fish in a limited space. Might be the precursor to some violence.

Could you split them up?

Nice tree stump.

 

[Sundowner]

Thought it might be enough space. It's 10ft by 10ft and 4ft deep. Maybe remove some of the others?
Thanks for the reply. I'll keep an eye out for some violence and hope the tinfoils keep doing their job as dither