I would'nt be blaming it on your other bangaii. Sudden deaths happen often in this hobby. It does'nt take long for worms to clean up a carcass. Maybe thats all they ate before the flow dislodged it from where it died. Sorry for your loss.
As blunt as some posters (with me being guilty of it too) are, sometimes they are right. It is true what that other guy posted.
