Has anyone seen a pencil thin line indentation/laceration along with tiny holes in flowerhorn's kok? Seems like a non-bleeding 1.5 inch cut along with dot. It is not like what you see with hole in the head symptoms. So I am suspecting that the kok got hit along an edge which there is on the canister filter outtake. Or does anyone think this is some sort of disease rather than an injury? I took off the sharp outtake and took a picture.
