JK, can you purchase some kind of water ager?
Sorry for you losses, hope it all gets sorted really soon.
Conch, the pic that jk posted (the fish did look like it had fin rot), but obviously it wasn't since the fish died so quickly right? Fin rot wouldn't kill a fish that fast would it? I mean I know you folks are thinking some kind of bacteria/fungus but just curious about the fin rot.
Caper