May 4, 2013 #1 jseiverd Aquarium Advice Activist Joined Nov 30, 2012 Messages 110 Location cecil county md My piranha has it whats the cure
May 4, 2013 #2 Rivercats Aquarium Advice Addict Joined Jul 25, 2012 Messages 13,144 Location Missouri Google hole in the head disease and you will find a ton of information on how to treat it.
May 4, 2013 #3 54seaweed Macro Addict Joined Apr 3, 2012 Messages 7,807 Location Colorado sounds like a parasite