Seachem Clarity 500ml (SC-143)


New product

Clumps up fine particles in water so they are easily removed by mechanical filtration.

Safe for fishes, plants, reefs, both fresh and marine aquarium.

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$ 36.00

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Brand: Seachem

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Seachem Clarity 500ml

Clears Up Cloudy Water in One Step

Persistent cloudiness in aquarium is caused by fine particles that escape mechanical filtration. Adding Seachem Clarity to aquarium water will solve the problem.

Seachem Clarity uses advanced polymeric flocculating agent that clumps up and precipitates fine particles in water, resulting in larger particles that can now be removed by regular mechanical filtration.

Seachem Clarity is safe for all fresh and marine aquarium as well as planted and reef tanks.


Seachem Clarity is a single solution that works on all types of aquarium, fresh and saltwater. Its benefits are:

  • Advanced polymeric flocculating agent, safe for reef and plants
  • Precipitating and flocculating actions in one bottle
  • Removes all types of cloudiness

How Clarity Works

Upon adding Clarity to the water, a cloudy haze begins to form. This is normal and means that Clarity is beginning to work.

The water is filled with tiny pieces of floating matter that were not visible to the naked eye. Clarity makes those pieces of matter clump together, forming a cloudy residue.

Normal mechanical filtration will in no time remove the cloudy residue. This is because fine particles that were once too small and slipped through the mechanical filter media will now be caught by the media.

In order for Clarity to work effectively, you should have a filter with mechanical filtration (e.g., filter floss) connected to your aquarium.

Seachem Water Treatment Products

N30 is the authorised dealer in Singapore for Seachem fish medication and water treatment products.

Order your Seachem fish medication and water treatment products 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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