Seachem Clarity

6 reviews

Seachem Clarity water additive helps clear up cloudy fish tanks, helping to remove toxins by binding them together so your aquarium filter can pick them up easier, leaving your water crystal clear and like new.


  • Clarity 100ml
    code: 145 In Stock (Only 4 left!)
  • Clarity 250ml
    code: 146 In Stock (Only 6 left!)
  • Clarity 500ml
    code: 143 In Stock (Only 5 left!)

Product Information

Seachem Clarity is the ultimate clarifier for both fresh and saltwater. It uses an advanced polymeric flocculating agent that is safe for use in both planted and reef aquariums. This advanced product clears various types of cloudy water, including chemical and particulate clouding (caused by gravel/substrate). It works by binding together the minuscule particles that can then be disposed of via the mechanical filter. As Seachem's Clarity contains both precipitating and flocculating agents in one treatment, all types of problem can be removed in just one dose.

Key Features:

  • Safe for planted and reef aquariums
  • Clears various cloudy water
  • Binding minuscule particles so they can be disposed of via the filter
  • Problems can be removed in one dose

Dosage: Use 5 ml for every 80 litres / 17.6 gallons.

In some situations the cloudiness may increase slightly after adding Clarity, however this is normal and is a sign that the product is actively working - a clear tank won't be far behind! It's a good idea to clean filter media after use to remove any remaining debris.

Latest Customer Reviews

  • Rating
    Date 31/03/2018 08:03am
    Seachem Clarity 500ml
    Feefo Logo
    Great product, clears all types of clouding will definitely buy again
  • Rating
    Date 17/12/2017 17:12pm
    Seachem Clarity 100ml
    Feefo Logo
    In all the years of owning Marines I have never once used this type of thing before.

    It does what it says on the bottle! I had near enough crystal clear water in another new tank I've set up within a couple of hours.
  • Rating
    Date 07/09/2017 07:09am
    Seachem Clarity 250ml
    Feefo Logo
    Good stuff does the job after a few hours.
  • Rating
    Date 27/05/2015 05:05am
    Seachem Clarity 250ml
    Feefo Logo
    Great service
  • Rating
    Date 23/02/2015 23:02pm
    Seachem Clarity 100ml
    Feefo Logo
  • Rating
    Date 10/12/2014 09:12am
    Seachem Clarity 250ml
    Feefo Logo