White borders on Scales - Ctenopomas

[cunniculus]

This has been going on for some time and I'm finally trying to do something about it.

Details:

1. Planted tank - 120g.
2. Injected CO2 - pH 6.8
3. Temp: 82 deg F.
4. No water quality issues

Fish act normally though they do "flash"
White borders started appearing on fish several weeks ago. Some have stayed the same and some have gotten worse. Most fish in the tank are ctenopomas. Not all, but most are affected - some worse than others.

Here are two pic. One average, the other worse.

I've done some research but want to see what others have to say before I jump to conclusions.

Fish are fine and don't seem adversely affected....yet.

Thanks

 

[dovii88]

i would start treating the tank with ome type of chemical perhaps melafix

 

[benzjamin13]

Looks like a fungus problem. Treat it with some anti fungal.