Productivity is the basis of business continuity. With this belief, the OZPOLISH Line of products for use in aquaculture has been developed. Though not as toxic as Ammonia or Nitrite, Nitrate is often ignored by most farmers, which impacts their productivity. This is known to be considerably impacting the fisheries industry, every year. OZPOLISH De Nitra has been developed with natural ingredients to reduce the nitrate in fish and shrimp ponds. Once administered into the pond, OZPOLISH De Nitra should be showing results in approx 24 hours. OZPOLISH De Nitra has been developed to work in both freshwater and saltwater. No special instruction required. Just dose 500 grams per acre. For use in shrimp or fish pond/farming.