Kordon Rid Fungus is a disease treatment solution made with organic herbal ingredients as a way to reduce the frequency of external skin infections and to help treat existing infections on both fish and invertebrates, without adding dangerous chemicals into the ecosystem. These diseases are infectious and caused by invasions of the protozoan parasite in the tank. One of the premier aspects of the Kordon Rid Fungus is that due to its wide-ranging treatment parameters, a firm diagnosis is not needed to use this product for your fish. It will attack and treat any fungal or parasitic infections it can find and inhibit growth and spreading, effectively reducing the chance of those same infections returning at a later date. Many of the common infections include "white spot syndrome", Brooklynella and Ichthyophthirius, all of which can be managed by using the Kordon Rid Fungus solution as soon as symptoms begin to appear. After using the solution, the water does not need to be changed, helping to reduce the stress levels of already sickly fish. It does not impact the natural nitrogen cycle and will not raise or lower the pH balances in your aquarium. At 16 fl oz, this solution can effectively treat up to 960 gallons.