Seachem SeaChem Denitrate de nitrate 1L (400g)

Purchased but no longer needed due to a change in filtration system. Selling as new and unused.

Purchased in January 2026.

Seachem Denitrate
1L (400g)
Purchase price: ￥5,480

Product Description:
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Suitable for:
Freshwater and saltwater aquariums

Features:
A highly porous filtration media designed to remove nitrates from the water using facultative anaerobic bacteria.
Removes and suppresses not only nitrates but also nitrites, ammonia, and organic matter.
Effectively lowers nitrate levels without the need for specialized denitrifying filters.

Contents:
1L (400g)

How to Use:
Lightly rinse with water before placing in the aquarium.
Use 1L for every 200-400L of aquarium water.
Place in a filter bag or net and position in an area with low water flow but where water can still pass through.
Optimal performance is achieved with a water flow of 200L/hour (3.3L/minute) or less.
If placement in a low-flow area is not possible, consider using the sister product, Matrix.
Nitrate levels will begin to decrease within a few days of setup and can be suppressed to below 5mg/L. The product can be used as long as nitrate levels remain suppressed.
The effect typically lasts for 3-4 months. Replacement is recommended when nitrate levels rise above 20mg/L.
If initial nitrate levels are high, it is recommended to perform a water change to lower the level to around 20mg/L before using this product.
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