A few weeks ago i just set up a new tank....then i moved some fishes into the tank....(tetra, green sev, rotkiel, thib bar SD, semaprochilodus, etc2) aweek later i decided to move my albino sev too into the tank...maybe as a new comer and different environtment, he was a little bit stress and he didnt eat as much as in the previous tank....
I kept a red head tapajos too in the tank...and my rotkiel bullied him until he got stressed and hiding in a cave all the time....
Both stressed fish infected by this weird disease....the others don't
Beacuse of stress, decrease of immunity....and...it happened hiks2