Yes when I looked at the oscars jaw, it looked extended enough, that I was thinking columnaris or some other similar bacterial infection..
Once that bacterial species is in a tank, it can survive in a dormant state, in the slightest chunk of detritus for months (maybe years) only to become active at a later time.
This is why I suggested tearing an infected tank down, and bleaching everything.
If even one cell survives (especially if antibiotics have been used for treatment) that 1 cell could have a superior resistance to the next antibiotic treatment, and be that much harder to get rid of.
I'm of the opinion if something appears that even slightly resembles colomnaris, I euthanize the entire population of the tank, and either bleach or replace anything that had to do with that tank.
Once that bacterial species is in a tank, it can survive in a dormant state, in the slightest chunk of detritus for months (maybe years) only to become active at a later time.
This is why I suggested tearing an infected tank down, and bleaching everything.
If even one cell survives (especially if antibiotics have been used for treatment) that 1 cell could have a superior resistance to the next antibiotic treatment, and be that much harder to get rid of.
I'm of the opinion if something appears that even slightly resembles colomnaris, I euthanize the entire population of the tank, and either bleach or replace anything that had to do with that tank.