You can't use salt in planted tanks.. just fyi.. will kill plants..
For actual meds look for Kanaplex or Maracyn Plus or if you can't find either look for Furan-2 -or- Maracyn and Maracyn-2 in combo.
Sounds like there may be something in the tank.. doing several large water changes over the course of a week or two will hopefully reduce this bacteria, but if it goes away in qt and keeps coming back each time you add him in spite of the increase in changes it may need to be broken down and sterilized, but hopefully this can be avoided. In the meantime you have the choice of removing and treating 2 weeks of aquarium salts or the meds.
Yeah, I have Maracyn I & II and I have antibiotic flakes (Kanamycin). But I'd rather avoid medicating if possible. I'm wondering if there's bacteria on the tank walls or something? And since he glass surfs so much, it gets on his eyes? ... I have no idea if that's even plausible.
Sigh, back into the QT he goes. I won't take him out early this time, and I'll try doing large water changes in the tank proper during his treatment. Hopefully after the full 10 days, the main tank will be clean enough. If it comes back even after that, I'll go ahead and sterilize.
2/19 - moved to QT. 50% water change with 1tsp/gal AQ salt
Well, it's day 10 and he looks pretty much the same as he did on day 4 - left eye clear, right eye still has a smudge of fog. I'll go ahead and take him off salt but leave him in quarantine plus frequent water changes for a while longer. Still eating well, very active. =S
He's in fresh water in quarantine now. Eye status is the same (left eye clear, right eye has a smudge across the top), but there's been a new development. There are tiny pin-prick holes on his head O_O
Could this be from the salt?? What happened?
Other than the holes, there's no other changes... he still eats well, still very active (but not darting, etc). He hates being floated in his cup for water changes and swims round and round and tries really really hard to swim out the side. I was a little concerned about the areas of less pigment on his face (the lower half + band around his eye), but I looked at old pictures from earlier, and he's always seemed to have those...