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Deal.ai › Seachem
Seachem
Seachem Clarity Aquarium Water Treatment - 500 ml

Seachem Clarity Aquarium Water Treatment - 500 ml

Best price now

$5.29at petfriendlysite.comChecked 1 h ago

45% under what the other stores charge

Compared across 13 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Best price today: $5.29 at petfriendlysite.com (checked Nov 12, 2026).
  • Checked at 13 stores.
  • Our take on the Seachem Clarity Aquarium Water Treatment - 500 ml

    Seachem Clarity is a liquid clarifier for freshwater and saltwater aquariums. It combines a precipitating agent with a polymeric flocculant, so it tackles both chemical cloudiness and fine suspended particles in one dose. The flocculant clumps tiny particles into larger masses that mechanical filtration can remove; the water may look hazier for a while before it clears. It is safe for reef and planted tanks, which sets it apart from simpler clarifiers aimed at fish-only setups.

    Best forReef and planted tank keepersClearing cloudy or milky waterFreshwater and saltwater aquariumsHobbyists who want one clarifier instead of several
    Pros
    • Works in both freshwater and saltwater
    • Combines precipitating and flocculating action
    • Safe for reef and plant aquariums
    • Treats chemical and particulate cloudiness
    • Dosed by capful, easy to measure
    Cons
    • Water can look cloudier before it clears
    • Needs mechanical filtration to finish the job
    • Does not fix the cause of cloudiness
    • Overdosing can cloud the tank further

    Seachem Clarity Aquarium Water Treatment - 500 ml prices at every store

    • Nature AquariumsUSNew

      In stock

      $4.93+ $5.95 shippingChecked 1 h ago
      Visit Nature AquariumsUS
    • Dubia.comNew

      In stock

      $4.39+ $8.95 shippingChecked 1 h ago
      Visit Dubia.com
    • Petco.comNew

      In stock

      $10.39+ $6.99 shippingChecked 1 h ago
      Visit Petco.com
    • petfriendlysite.comNew

      Availability unknown

      $5.29Checked 1 h ago
      Visit petfriendlysite.com
    • Fish Tanks DirectNew

      Availability unknown

      $5.99Checked 1 h ago
      Visit Fish Tanks Direct
    • eBayNew

      Availability unknownSold by kens_fish

      $8.29Checked 1 h ago
      Visit eBay
    • AmazonNew

      Availability unknown

      As an Amazon Associate, Deal.ai earns from qualifying purchases.

      $8.41Checked 1 h ago
      Visit Amazon
    • KwikPets.comNew

      Availability unknown

      $9.58Checked 1 h ago
      Visit KwikPets.com
    • Super CichlidsNew

      Availability unknown

      $11.99Checked 1 h ago
      Visit Super Cichlids
    • ASAP AquariumNew

      Availability unknown

      $13.99Checked 1 h ago
      Visit ASAP Aquarium
    • SaltwaterAquarium.comNew

      Availability unknown

      $16.71Checked 1 h ago
      Visit SaltwaterAquarium.com
    • AquaCave.comNew

      Availability unknown

      $17.04Checked 1 h ago
      Visit AquaCave.com
    • Top Shelf AquaticsNew

      Availability unknown

      $18.99Checked 1 h ago
      Visit Top Shelf Aquatics

    Also available at

    • PetEsentialsCheck price at PetEsentials

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    Seachem Clarity Aquarium Water Treatment - 500 ml price history

    Lowest price we've seen: $4.39 on Nov 13 at Dubia.com. Tracked across 13 stores since Nov 13.

    What reviewers say

    Owners report that Clarity clears milky and particle-clouded water within a day or two when mechanical filtration is running. Many note the temporary haze after dosing and stress that it treats the symptom, not the underlying cause.

    What people mention
    • ClarityPraisedOwners say milky and particle-clouded water clears within a day or two.
    • Temporary hazeMixedMany note the tank looks cloudier right after dosing before it clears.
    • FiltrationCriticisedUsers say it only works if mechanical filtration is running to remove the clumps.
    • DosingMixedThe capful dose is easy to measure, but some warn that overdosing clouds the tank further.
    • Root causeCriticisedReviewers note it clears the water but does not fix what caused the cloudiness.

    About the Seachem Clarity Aquarium Water Treatment - 500 ml

    Seachem Clarity is an aquarium water clarifier for both freshwater and saltwater tanks. It uses a polymeric flocculating agent that is safe for reef and plant aquariums.

    The formula combines precipitating and flocculating agents in one product. It addresses chemical and particulate cloudiness without the need for multiple products.

    Clarity clumps together tiny particles that are otherwise invisible. The water may turn hazy at first while this happens. Once the particles aggregate, mechanical filtration removes them and the water clears. Clean the filter floss or cartridges after the tank clears.

    Brand
    Seachem
    Product type
    Aquarium water care
    Size
    500 ml
    Suitable for
    Freshwater and saltwater aquariums, including reef and plant tanks
    Species
    Fish
    Dosage
    1 capful (5 mL) per 80 L (20 gallons) of water
    Active agents
    Polymeric flocculating agent and precipitating agent

    Questions and answers

    How does Seachem Clarity work?
    It uses a precipitating agent plus a polymeric flocculant. The flocculant binds fine particles into larger clumps that mechanical filtration can trap and remove.
    Is it safe for reef and planted aquariums?
    Yes. Seachem states it is safe for both reef and planted aquariums as well as fish-only freshwater and saltwater tanks.
    Why is my tank cloudier after dosing?
    That haze is the flocculant clumping invisible particles. It should clear once mechanical filtration removes the clumps.
    How much do I dose?
    The label directs 1 capful (5 mL) per 80 L (20 gal). Follow the label and avoid overdosing.
    Will it fix cloudy water for good?
    It clears the water but does not address the cause. If the source of the cloudiness remains, it can return.
    Does it replace a water clarifier and a flocculant?
    It combines both actions in one product, so a separate precipitating clarifier is usually unnecessary.
    Where is the Seachem Clarity Aquarium Water Treatment - 500 ml cheapest?
    At petfriendlysite.com, for $5.29, 45% under what the other stores charge, as of our latest check.
    Where can I buy the Seachem Clarity Aquarium Water Treatment - 500 ml?
    14 stores we checked sell it, including petfriendlysite.com, Amazon, Dubia.com, Nature AquariumsUS, Fish Tanks Direct.

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