Seachem Matrix 1L (SC-117)


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Permanent. Need no replacement over time. Compatible with wet or wet-dry filters. Most effective with canister filter.

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$ 27.20

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Brand: Seachem

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Benefits of Seachem Matrix

Seachem Matrix comprises highly-porous biomedia that promotes efficient bio filtration in the aquarium.

With efficient bio-filtration process, nitrogenous wastes are quickly removed naturally by denitrifying bacteria that break down these nitrogenous compounds.

Seachem Matrix ensures that toxins are neutralised promptly so that aquarium water remains safe for fishes, corals and plants at all times.

  • High capacity biofiltration
  • Controls ammonia, nitrite, and nitrate
  • Highly porous. Extremely large surface area.
  • Supports aerobic and anaerobic denitrifying bacteria
  • No filter bag is required
  • Will not breakdown (a permanent media)
  • Can be washed

Permanent Bio Filter Media

Seachem Matrix is completely inert and will not breakdown. Hence, you will never lose filtration capacity, and you will never need to replace them.

The only time you need to add more Seachem Matrix is when you need to increase the biofiltration capacity due to an increase in aquatic creatures that cause a rise in nitrogenous wastes, or when you have upgraded to a larger tank. Other than that, Seachem Matrix need not be replaced.

Since the majority of the bacteria are internal, Seachem Matrix may be rinsed whenever needed without damaging the filter.


Seachem Matrix is:

  • Porous inorganic solid
  • Completely inert and will not breakdown
  • Each bio media is about 10 mm in diameter
  • 1 liter of Seachem Matrix provides as much surface area (approx > 700 m2) as 170 liters of plastic balls!

Seachem Matrix vs Plastic Bio

Plastic bio-materials provide only external surface area, whereas Seachem Matrix provides both external and internal macroporous surface area.

These macropores are ideally sized for the support of nitrifying and denitrifying bacteria.

This allows Seachem Matrix, unlike other forms of biomedia, to remove nitrate along with ammonia and nitrite, simultaneously and in the same filter.


  • Use 250 mL of Seachem Matrix for each 200 L (50 US gallons) of water. See packaging instructions for exact details.
  • Seachem Matrix may be placed in any kind of filter, but is particularly effective in a canister filter.
  • Seachem Matrix is sufficiently large that no filter bag should be required for most applications.
  • Seachem Matrix works well in drip tray systems, but you may find that the larger Pond Seachem Matrix is better suited for such applications.
  • Use with Stability to more rapidly establish the bio-filter.

Seachem Aquarium Filter Media

N30 is the authorised dealer in Singapore for Seachem aquarium filter media.

Order your Seachem aquarium filter media online today at

Seachem Guide

Which Seachem products do I need?

From treating fish infections to solving water and algae problems, Seachem has the right products to restore your aquarium.

Seachem - Fish Disease Treatment

A sick fish can spread infection quickly within an aquarium and threaten the life of other aquatic inhabitants. It is critical to accurately diagnose fish disease and dose the right medications as early as possible.

common fish diseases symptom guide - seachem medication guide

Seachem - Solve Aquarium Problems

Sometimes, a small change in water chemistry, alkalinity and acidity could cause problem for the aquarium. Below are some of the common problems:

  • Cloudy water
  • Algae over growing
  • Ammonia, nitrite, nitrate toxicity
  • Detritus or slime

Is your aquarium facing any of the above issues? If yes, use this guide to find the right Seachem products to restore your aquarium.

seachem products for common aquarium problems

About Expiration of Seachem Products

Many Seachem products do not have an expiration date by virtue of the ingredients used to make the products. Many mineral and non-organic components are shelf-stable, and do not have a finite shelf-life, and may be used for years with continued efficacy. If a product does not have a printed date of expiration, it can safely be assumed that the product does not expire.

expiration date of seachem products

About N30

About N30 Tank

N30 Tank Pte. Ltd. is a leading manufacturer of custom-made fish tanks cabinets. As a tank maker, we supply aquarium cabinets to homes and offices locally as well as ship orders worldwide.

N30 provides expertise in the construction of large acrylic aquariums, such as those in Underwater World (Resort World Sentosa). We supply customised storage tanks to fish farms such as Qian Hu, and to major restaurants. The N30 brand name is trusted for quality workmanship in the industry.

N30 has developed unique glass-sealing techniques, which allows us to produce very large tanks (such as 30-feet long) without issue of water leakage. For all custom-made fish tanks, N30 assures customers of Five Years Warranty against water leakage.

To support the needs of aquarium hobbyists, N30 is also offering a wide range of aquarium accessories such as filters, pumps, lighting, wave makers, skimmers... for sale online. We encourage customers to browse and shop online at for accessories. It is convenient and we provide free delivery for orders (see the online store terms and conditions for details).

Loyalty Points

Loyalty Points (N30 Member Rewards)

Earn 5 points per dollar

N30 members earn five points per dollar spent online at Each point is worth S$0.01 in cash value.

Convert points into eVouchers redeemable for discounts on your orders.

shopearn pointsredeem

When you purchase S$100 of aquarium accessories online at, you will earn 500 points in your N30 account. You may convert the 500 points into an eVoucher worth S$5. To use this eVoucher on your next order, simply enter the unique eVoucher code in your shopping cart before you check out. That's all!

The more you shop on, the more you will save on your next order!

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