ive not seen this before, just watching my goldfish tank tonight and noticed one of them has these marks on his face, head, and red gills. I don’t know if fish can get a form of fish herpies, but that’s what it looks like....sorry the pictures are not very clear.....there is also red streaking in the fins....
This happened overnight...I changed 50% of my water on Friday, and then 80% of my water on Sunday...
I’ll post water parameter tomorrow as I don’t have my test kit home, I lent it to a friend bc I didn’t think I would need it...
Nothing has changed in the tank.
Temperature is 77
I know these are signs of high nitrates, but it cannot be the case here (even without my test kit I know it not high NA), this tank has been running for several years, I didn’t clean the filters within the last 6 months so it’s not a mini cycle of the sorts... I’m currently in the process of changing 80% of the water again now

This happened overnight...I changed 50% of my water on Friday, and then 80% of my water on Sunday...
I’ll post water parameter tomorrow as I don’t have my test kit home, I lent it to a friend bc I didn’t think I would need it...
Nothing has changed in the tank.
Temperature is 77
I know these are signs of high nitrates, but it cannot be the case here (even without my test kit I know it not high NA), this tank has been running for several years, I didn’t clean the filters within the last 6 months so it’s not a mini cycle of the sorts... I’m currently in the process of changing 80% of the water again now






