Koi RIP suddenly

[ahpek_lion]

Ytd Morning, my koi was eating fine .... I was still playing with it. When i returned home, i did not check on the fish cos i was busy doing work and at 2am, i decided to check to see if they were ok

And there, i found the largest koi floating on the surface; lying motionless It was already hardened and scales were seen floating in the tub. It must have knocked itself around before it died Haixxx....