Reply To: Dying fish!! Please help!!!! Welcome to the website! › Forums › General › General Aquaria › Dying fish!! Please help!!!! › Reply To: Dying fish!! Please help!!!! July 17, 2007 at 11:01 am #11689 CrazedpufferParticipant Could be over medication. Do a 50% percent water change. If they show signs of sickness again do a Melafix + Pimafix combo.