ProForm-C is the safest and most effective treatment for the control of diseases and fungal infections.
You do not need to bypass your bio-filters. This will allow a more comprehensive treatment of your entire pond.
The ONLY treatment that can be used in water temperatures as low as 50 degrees (F), allowing treatment in early spring and late fall.
Treatment is daily
Less toxic to Koi and goldfish than any other malachite green and formalin product on the market.