Not the writer of this informaion.
Skin Flukes- Flukes are trematode worms up to 0.8 mm or .03 in in length. They attach themselves to the fish sometimes near the gills, by using a sucker with two clasping hooks and then they proceeded to feed on the fish skin cells. It is possible to see the flukes by using a low-powered microscope. These worms are forever producing. (the adult produces young, and even the young is producing a younger worm within it) Serious infections can result, and minor ones are less likely to be noticed. You should assume that if you are treating for a bacterial infection that you treat for Flukes as well. They are easily seen with a microscope. Most species of fish can become infected with this problem. Symptoms: The fish may rub against hard objects, and the skin may appear opaque or inflamed. Treatment: Easily treatable with Potassium permanganate, or Fluke tabs. Another known remedy is using a 3% salt dip to rid fish of the parasites. The best advice given is to keep your fish in tip-top health. Keep the tank clean, and the water conditions accurate.