Rtg with slight bubble face

[domingos.44]

Hi
I just bought a rtg arowana and it has a bit of bubble face disease. I have notice that one of the bubbles has popped. I have read a lot about this and I will start treatment by raising temp to 85 degrees and lots of oxygen. a powerhead, aquarium salt and 10 percent water change everyday. Any advice would be much appreciated here's some pictures

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[Koji]

Check your filters. How long did you last do some cleaning on these filters?

These bubbles take times to become smaller and after that disappear. It's some form of infection but not deadly. one or two of my arowana use to have this problem, but over the time with just clean water, salt and keeping the filter healthy the bubbles disappear.