Ok, I've got this dwarf gourami... and I've had him for maybe 4 months. and in this time, he's very very slowly developed a small bump on his side. Then the bump turned into two bumps and then it turned into 4 bumps... and now it's a whole patch of missing scales that are an ugly red... The bumps were like, one scale was missing and the bump was white. I'd look, but it didn't look like fungus... I treated him for fungus, added a bit of salt to the water, but it wouldn't change for weeks... I keep thinking this is bacterial - No one else in the tank has wierd patches of missing ickie stuff... the other two dwarfs are beautiful and robust, constantly blowing bubbles, etc. and this guy doesn't clamp his fins or really display that he's ill aside from that he doesn't compete in the bubble contest. He eats well, but is the only one in the tank who's terrified of the net. My parameters are ph 7.8, ammonia 0, nitrites .05 (currently in the midst of pruning out some dead plants the gouramis killed and hoping that's the cause of the nitrites), and temp of 81. They are in a 30gl tank with three female bettas (female bettas, unlike males, get along just fine with dwarf gourami males) with 6 otos. But, he's had this thing forever and ever as far as I've known the guy. Just didn't realize he had this bump on his side when I bought him.
So, I guess the question is, is it bacterial? or some kind of cancer?
And I know I have horrible photography skills and even worse photoshop skills (so comments about my photo skills are really unnecessary)... but aside from that, here's a photo:
The picture just looks like a reddish patch in the side of my blue gourami anyway.