Are my filefish fighting or mating? [VIDEO]

[jack.mid]

I bought a pair of "bonded" white-spotted pygmy filefish from live aquaria and they swam together for a bit when I first put them in my tank, but now it seems like they hate each other.

The video is of the smaller one chasing the big one, but it happens the other way around as well and is usually more violent when the big guy decides to chase. He only seems to chase her for a few hours after feeding and then she chases the rest of the time.

They have been in my tank about 4 days should I give it more time or will they likely just fight as long as they live together. I learned my lesson about trusting an online retailer to send actual bonded fish.

 

[jack.mid]

Anyone have any idea???

 

[Jase4224]

I just tried to watch but the video didn’t work.. look out for torn fins

 

[jack.mid]

I just tried to watch but the video didn’t work.. look out for torn fins

Here I uploaded it to youtube so you can take a look. It's only 20 seconds.

 

[Jaebster]

No expert here... but the it doesnt seem like its aggressive behavior. From the video, didnt see actual attacks, biting.