Hi guys, thanks for your replies.
The first video is taken yesterday, after what i said in my first post.
1st Video
Today i switched on the light to the tank and i observed it for a while before going to do my own stuff, suddenly i heard a loud splashing noise and when i came out i saw the arowana thrashing around wildly in the tank mcm kena possessed.
Lasted about 5 sec or so but it continued to swim rather aggressively.
The next two videos are right after today's incident.
2nd Video (Swimming weirdly)
3rd Video (Close up on injuries)
As you can see the top of its head has some abrasions (possibly due to it hitting the tank top.)
Any advice would be appreciated!
