SeaChem De*Nitrate Nitrate Remover 500ml
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 and anaerobic bacteria that further break down these toxic aquarium byproducts.
Even when exhausted as an organic adsorbent, De*Nitrate continues to serve as an effective support for the biological filter and does not need to be removed from the system.
Usage Instructions
- Place De*Nitrate in a location where water flow passes through it, such as a canister filter, chemical filtration module, or box filter.
- Flow rate should not exceed 200 L (50 gallons) per hour.
- If higher flow rates are required, consider using Matrixe or Pond Matrixe instead.
| Specification | Value |
|---|---|
| Volume | 500ml |
| Form | Granular |
| Active Components | Nitrate, nitrite, ammonia, organic compounds |
| Application | Freshwater and marine aquariums |
FAQ
Can De*Nitrate be used in both freshwater and marine aquariums?
Yes, De*Nitrate is effective in both freshwater and marine aquariums.
What is the maximum flow rate recommended for De*Nitrate?
The recommended flow rate is not to exceed 200 L (50 gallons) per hour.
Does De*Nitrate need to be replaced when it becomes exhausted?
No, De*Nitrate does not need to be removed or replaced when exhausted. It continues to support biological filtration.

Irene Rampling –
I’ve used De*Nitrate in my marine tank for three months now. The nitrate levels have dropped significantly, and the water clarity has improved. It’s easy to install in my canister filter and works well with the existing bacteria colonies. No need to replace it even after several weeks of use.
Penelope Payne –
Good performance in reducing nitrates. I placed it in my box filter and noticed a steady improvement in water quality. The flow rate in my tank is under 200L per hour, so it’s working perfectly. I haven’t had any issues with clogging or loss of effectiveness.
Nicola Dowd –
After switching from a chemical filter to De*Nitrate, my tank’s ammonia and nitrite levels have stabilized. The granular form is easy to handle and fits well in my canister. It’s a reliable option for long-term water treatment.