Symptoms:

• White film over eyes

What is it?

Eye fungus is caused by a saprolegnia fungus. If the eyes do not have a cottony white film over eyes, but a translucent film over the lens of the eye, then it could be a gram-negative bacterial infection. Fish naturally have a translucent bubble over their eyes so be careful in this diagnosis.

How did it get there?

Like many fungus infections, it is caused by stress which in turn is caused by poor water quality, fluctuating temperatures or a change in tank.

Treatment

If your fish is exhibiting the white film over it's eyes, Copper sulfate, or Forma-Green can be used. If you suspect the gram-negative bacterium, Kanamycin Sulfate, Gentamycin Sulfate or TMP Sulfa can be used.

Prevention

• Keeping the water clean and temperature steady as well as the use of aquarium salt will help to keep your fish stress free.