Seachem Purigen 1L (SC-167)


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Seachem Purigen is a superb filtration media made of premium synthetic adsorbent. The unique macro-porous synthetic polymer effectively removes soluble and insoluble impurities from the water up to 5 times faster than competing filter media.

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$ 130.40

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Brand: Seachem

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Seachem Purigen 1L (SC-167)

Seachem Purigen effectively removes ammonia, nitrites, nitrates & more.

  • Removes ammonia, nitrites, nitrates in water
  • nitrogenous organic waste
  • soluble & insoluble wastes

Benefits of Purigen

  • Up to 5 times faster than competing filter media
  • Minimal impact on trace elements
  • Significantly increases redox
  • Great water clarity
  • Suitable for marine and freshwater
  • Easily regenerated and re-use many times, long-term cost saving

How to prepare Purigen

  • Rinse before use.
  • Place Purigen in fine mesh (180 micron or less) filter bag.
  • 250 mL treats up to 1,000 L (250 US gallons) for up to six months.

How to Regenerate Purigen

As it adsorbs waste products, Purigen will darken to dark brown, almost black. Once it is exhausted, it can be regenerated with a solution of bleach and water. The bleach will literally “burn off” the organics stuff on the surface of Purigen.

Difference - bleach vs brine regeneration

Some filter media products can be regenerable with a brine solution. However, brine regeneration only restores ion-exchange. A brine solution will not remove organics, and over time such filter media will be less effective at organic waste absorption. Whereas the bleach burns off even the hardened organic stuffs that remain on the surface of the Purigen filter media, totally restore Purigen to its effective state.

Seachem Filter Media Online Shop

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

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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