He is gone and the tank is QT
That creeping crud came back (obviously was not really quite gone) and used his wound to eat him alive >shudder< He was nearly half gone in less than 48 hours and his demise was....eeew! The other diskie has signs of the black death but is responding to the immediate return of full treatment. I am treating 4 weeks period....no matter how good it starts looking!
That is why it was so surprising I think..the original burn was prolly earlier still like after the power out a day earlier and it was the bacteria/fungus munching him overnight that caused the huge "sudden" owie.
We are water changin and saltin like mofos. And we covered the tank to prevent a repeat of the betta plague. no tanks are next door anyway.
Don't know why but this thing gives me the creeps, the dead fish look hideous (not that dead fish look great..but...) and the scale dust/fubus spore thing is just ...>shudder< X0