The Viresco Koi is a micro-organism based product for suppressing blanket weed and algae bloom in ponds.

Viresco is totally biological and harmless to wildlife. Contains Viresco Aqua and humanic acid. The latter is an extremely good food source for the microbes that are in this product.

Viresco Koi will suppress blanket weed and algae bloom by removing the nutrients on which they feed.

Digest detritus found on the bottom/sides of ponds; imprive the digestion and health of fish.

Viresco will help take nitrate in pond water down to zero. When it reaches zero, blanket weed and algae bloom die from starvation.

Viresco Koi will reduce phosphate levels in pond water.

Viresco Koi will help to Improve the digestion and general health of your fish by improving food uptake and reducing disease.

Available in three sizes: - 5g (sufficient to treat 3,000 gallons / 13,6000 litres) - 10g (sufficient to treat 6,000 gallons / 27,250 litres) and 25g (sufficient to treat 15,000 gallons / 67,500 litres).