Kordon Rid-Fungus as an organic herbal treatment is focused in its effectiveness in treating protozoan, fungal, and dinoflagellate infections. It may be an inhibitor, but is not an eliminator of infectious viruses, bacteria and multi-celled organisms. Rid-Fungus is compatible with the other Kordon organic herbal products, Rid-Fungus can be used with all Kordon Water Conditioners such as the NovAquas, the AmQuels, and Fish Protector.
Regarding the toxicity of Kordon Rid-Fungus to fishes and aquatic invertebrates -- it is not toxic to them. It may be that fishes and aquatic invertebrates die during treatment but numerous repeated experiments at more than ten times dosages of Rid-Fungus have shown that the causes of their deaths are not the Rid-Fungus treatment, nor does it contribute to the causes of deaths. What has caused the deaths besides the infecting diseases, that are too far advanced to be cured by treatment, needs to be determined by the keeper.
Rid-Fungus is safe for use in all kinds of aquariums and ornamental ponds, as well as on scaleless fishes (such as loaches, elephant noses, electric eels, knife fishes and catfishes), coral reef fishes, young fish and fry, reef aquariums, aquatic plants, aquatic invertebrates (such as snails, crustaceans, corals and sea anemones), amphibians and aquatic reptiles.
However, the success of this treatment (as with all effective treatments) is dependent upon starting treatment as soon as infections are anticipated or noted. It often can be late in the extent of infection when it is noted in fishes, which may be too late to save them. As an example, for some species of white spot disease (Ich), the infection usually starts unnoticed in the mouth, gills, and nostrils of the fish, only later appearing on the outside surface of the fish when it may be too late to save their lives by treatment.
Rid-Fungus will not stain sealants, ornaments, plastic or living plants, and will not unduly affect the pH or permanently discolor the water. Rid-Fungus does not affect beneficial nitrifying bacteria.