Diseases & Treating Sick Freshwater Angelfish Even the most
experienced angelfish breeders have to deal with angelfish
diseases. Sometimes keeping the water at optimal conditions and
doing regular fish tank maintenance isn't enough to prevent an
angelfish from getting sick. Regular maintenance is however a
good way to reduce the chance of any fish getting sick.
Preventing diseases is always better than trying to cure
diseases. The common freshwater angelfish diseases can be
divided into 2 categories, bacterial and parasitic diseases.
Common Bacterial Diseases: Cotton Wool Disease - Usually caused
by low temperature, poor water quality or crowding. It can be
seen as an expanding translucent layer on the skin of the fish
that eats away at the skin. The edges often are bloody. The fish
should be discarded if the disease is in advanced stages. If the
disease is in its early stages it can be treated by using either
4 teaspoons marine salt to a gallon of aquarium water and
potassium chromate or Dropsy, Popeye, Blee