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Seachem Clarity – Clear Cloudy Water Fast

From £7.99

Seachem Clarity is the ultimate clarifier of cloudy water for both fresh and saltwater; and will clear all types of water clouding.

  • Description
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Seachem Clarity is the ultimate clarifier of cloudy water for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both reef and plant safe. Seachem Clarity will clear all types of clouding.

Many companies manufacture multiple products to clear up each type of cloudiness and each different environment (e.g. freshwater, marine, reef, etc.). Some companies have developed products that will clear most types of cloudiness, but their application requires two separate bottles of product. Seachem Clarity contains compounds that will clear all types of cloudiness in all environments.

Clarity contains both precipitating and flocculating agents in the same bottle, enabling all types of cloudiness to be removed in one dose.

Upon adding Clarity to the water, you will see a cloudy haze begin 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 begin to clump together. As they clump together they form larger pieces of matter that are now visible, hence the cloudiness. Once this matter has clumped together, it is a simple matter of mechanical filtration to remove the residue.

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

Available in 3 Sizes: 100 ml, 250 ml, 500 ml



Use 1 capful (5 mL) for every 80 L (20 US gallons). In some situations the cloudiness may increase after adding Clarity, however this is normal and is a sign that Clarity is actively working. Rapid clarification will follow in 1–2 hours. In the case of chemical or particulate clouding clean filter floss or cartridge after tank clears.

Additional information


100ml, 250ml, 500ml