These clever tablets by market experts Nishikoi are designed to create optimum pond conditions. Each tablet contains millions of micro organisms that lower the amount of nitrate in your pond to a level where algae blanketweed struggle to survive.The tablets also contain another strain of microbes to digest pond sludge and fight against disease forming pathogens.Each tablet treats 1800 litres 400 gallons.Six pack treats 10,800 litres 2400 gallons.
