The disinfectant must come into direct contact with the organism. It is important that surfaces be clean of organic matter before disinfection This is best done by physically cleaning the surfaces with soap and water prior to using the disinfectant.

There are three products that can be used for disinfection of fish eggs. They are Ovadine, Parasite-S and Perox-Aid. All of these products have been proven safe and effective at the recommended dose. Most disinfectant products are toxic to fish, so must be used with a great deal of care around fish.

Parasite-S is used to treat parasites and protozoa on fish and is safe when label directions are followed. Perox-Aid can also be used on fish to treat Bacterial Gill Disease. Virkon is a very potent sanitizer and disinfecting cleaner.   Halamid is also used on fish, especially for treatment of Bacterial Gill Disease.

The choice of disinfectant is affected by not only cost but also by efficacy, speed of action and other hazard related concerns.