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Seachem Clarity
Seachem Clarity™
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Clarity™ is the ultimate clarifier for both fresh and saltwater. It employs an advanced polymeric flocculating agent that is both reef and plant safe. Clarity™ is the only clarifier on the market that does it all! Clarity™ will clear all types of clouding including, but not limited to, chemical clouding and particulate clouding (i.e. stirred up gravel bed). Freshwater and Marine. Plant and reef safe.

Sizes: 250 ml

Why It's Different

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. 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 peices 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. Matter that was once too small to get caught in filter media is now in large enough clumps.


Use 1 capful (5 mL) for every 80 L (20 gallons*). In some situations the cloudiness may increase slightly after adding Clarity™, however this is normal and is a sign that Clarity™ is actively working. Rapid clarification will follow. In the case of chemical or particulate clouding clean filter filter floss or cartridge after tanks clears. (Note: The 2 & 4 L container’s cap is 10 mL)