De Nitrate removes nitrates, nitrites, ammonia, and organics from both fresh and marine water. The high porosity of de nitrate supports the proliferation of both aerobic bacteria that further removes these toxic aquarium byproducts. Even when exhausted, it acts as an excellent support for the biological filter and does not have to be removed
For best results, de nitrate should be placed to assure the flow pf water through it, such as in a canister filter, chemical filtration module, or box filter. Flow rate should not exceed 200 liters per hour. If higher flow rate are unavoidable, use Matrix or Pond Matrix. It is best to rinse off dust before use. Once de nitrate has been in use for several days, nitrate concentrations should start to fall and level off gradually at a concentration of above 4-5 milli grams/liter as nitrates.
As long as nitrate concentration remains under control, the product is not exhausted. Each liter of de nitrate treats above 200-400 liters, depending on intial concentration and the current biological load. Enough should be used to remove nitrate at a rate at least as fast as the rate of formation. If very high nitrates are initially present, they should be brought down to less than 20 milli grams/liter with water changes