Seachem Denitrate 500ml

De Nitrate is a natural highly porous material that promotes anaerobic denitrification, helping to remove nitrates which can be potentially harmful at high levels. “Live” rocks or reef rocks remove nitrate by the same process, and De Nitrate replicates this due to its high surface area that supports a high density of bacteria. Anaerobic conditions are achieved by the depletion of oxygen caused by the aerobic process at the surface, therefore excessive flow rates should be avoided, as this can impede the effectiveness of the denitrifying bacteria. If algae is present in the tank, it can thrive off the nitrates, so it is important to keep levels under control.

Directions

Always rinse before use.

For best results, De Nitrate should be placed to assure the flow of water through it, such as in a canister filter, chemical filtration module, or box filter. Flow rate should not exceed 200 L (50 US gallons) per hour. Once De Nitrate has been in use for several days, nitrate concentrations should start to fall and level off gradually at a concentration of about 4–5 mg/l as nitrate. As long as nitrate concentrations remain under control, the product is not exhausted. Each 500 mL of DeNitrate treats about 100–200 L (25–50 US gallons), depending on initial nitrate 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 mg/l with water changes.