Algaecides are chemicals that kill algae. They are typically used in pools and hot tubs.

The Best Algaecide For Black Algae

  • Pool Mate 1-2190 Black Algaecide for Swimming Pools, 1-Quart
  • Applied Biochemists 406303A Black Algaetrine Swimming Pool Algaecide & Deposit Control, 32 fl oz
  • McGrayel Algatec 10064 Super Algaecide for Green Yellow and Black Algae 64 Ounce
  • APPLIED BIOCHEMISTS Black Algaetrine Algaecide (1 qt) - 2 Pack
  • In The Swim Black Pool Algaecide - 1 Quart
  • Pool Mate 1-2190-04 Black Pool Algaecide, 4-Pack
  • APPLIED BIOCHEMISTS Black Algaetrine Algaecide (1 qt) - 4 Pack
  • Pool Mate 1-2190-02BX Black Pool Algaecide, 2-Pack
  • Pool RX 101066 6 Month Algaecide Treats 20k-30k gallons, Black
  • SeaKlear 90-Day Algae Prevention & Remover, 1 Qt
    Pool Mate 1-2190 Black Algaecide for Swimming Pools, 1-Quart
    386 Reviews

    Non-Metallic Algaecide For All Pool Types (Vinyl, Fiberglass, Concrete, Gunite, etc.) Non-Foaming Prevents and Kills Algae Weekly maintenance dose: 4 oz per 10,000 gallons

    Free shipping
    Applied Biochemists 406303A Black Algaetrine Swimming Pool Algaecide & Deposit Control, 32 fl oz
    386 Reviews

    BENEFITS: Specially designed to fight tough black algae USE: Follow directions as part of regular swimming pool maintenance COMPATIBILITY: Works with all pool types; Functions with chlorine, bromine, and ozone sanitizers FEATURES: Contains copper and penetrating agents to kill and prevent the growth of even the most deeply rooted algae cells; Allows for swimming without waiting; Will not discolor the water when used as directed INCLUDES: One 32-oz container of Black Algaetrine from Applied Biochemists

    Free shipping
    McGrayel Algatec 10064 Super Algaecide for Green Yellow and Black Algae 64 Ounce
    1354 Reviews

    Will not interfere with pool water pH, or sanitizer levels and can swim immediately after treatment Kills rather than starves algae and prevents algae regrowth due to biostatic inhibitors Kills most algae in 8 to 24 hours; black algae in 7 to 10 days Salt pool friendly Formula contains no metals, bromides, or quats; Works synergistically with chlorine for fast cleanup Super-clarifics pool water during cleanup function

    Free shipping
    APPLIED BIOCHEMISTS Black Algaetrine Algaecide (1 qt) - 2 Pack
    1110 Reviews

    Controls black algae and other resistant forms Swimming can resume immediately after treatment Compatible with chlorine, bromine and ozone sanitizers

    Free shipping
    In The Swim Black Pool Algaecide - 1 Quart
    10832 Reviews

    NOTE: We are currently unable to ship Black Algaecide to DC, ID, MT, ND, RI, SD, UT, VT, AK or HI due to State Restrictions Initial Dosage: 16 ounces per 10,000 gallons at the onset of black spots or patches Shock and brushing strongly suggested Non-clouding and non-foaming formula Black algae typical found in concrete, plaster, or gunite pools because they�re porous surfaces

    Free shipping
    Pool Mate 1-2190-04 Black Pool Algaecide, 4-Pack
    386 Reviews

    Non-Metallic Algaecide For All Pool Types (Vinyl, Fiberglass, Concrete, Gunite, etc.) Non-Foaming Prevents and Kills Algae Weekly maintenance dose: 4 oz per 10,000 gallons

    Free shipping
    APPLIED BIOCHEMISTS Black Algaetrine Algaecide (1 qt) - 4 Pack
    1110 Reviews

    Controls black algae and other resistant forms Swimming can resume immediately after treatment Compatible with chlorine, bromine and ozone sanitizers 4 Pack

    Free shipping
    Pool Mate 1-2190-02BX Black Pool Algaecide, 2-Pack
    386 Reviews

    Non-Metallic Algaecide For All Pool Types (Vinyl, Fiberglass, Concrete, Gunite, etc.) Non-Foaming Prevents and Kills Algae Weekly maintenance dose: 4 oz per 10,000 gallons

    Free shipping
    Pool RX 101066 6 Month Algaecide Treats 20k-30k gallons, Black
    386 Reviews

    Simply place in pump basket or skimmer basket Eliminates all types of Algae Reduces Chemicals Effective for up to 6 months Simplifies Pool and Spa Care

    Free shipping
    SeaKlear 90-Day Algae Prevention & Remover, 1 Qt
    360 Reviews

    Reliable & Effective 90-days no algae guarantee (when used according to instructions in balanced pool water) Kills and prevents blue-green, green, yellow and black algae Non-foaming, non-staining (when used according to instructions in balanced pool water) 11.8% Copper Sulfate Pentahydrate; 3% Copper as elemental Effective against blue-green, black and mustard algae Nonstaining formula Each treatment will last three months Use 16 fluid ounce 10000-gallon of pool water to prevent algae growth in all pool types For severe algae treatment use 32 fluid ounce per 10000-gallon of pool water

    Free shipping

What is the best algaecide for black algae?

Black algae is more likely to come back after an initial outbreak. Use Suncoast All in One Algaecide to prevent future algae breakouts. This is the best multi-purpose algaecide. It keeps your pool algae-free without foaming and contains a clarifier to keep your water sparkling.

What kills algae immediately?

You can get rid of algae quickly by vacuuming and brushing your pool, balancing your pool’s water chemistry, and then shocking and filtering your pool water. Just be thorough as you clean your pool surfaces. If you leave behind even a small number of algae spores, it won’t be long before they regrow and bloom again.Jan 2, 2022

How do I get rid of black spot algae in my pool?

  • Give the Black Spot a brush with your pool broom or an algae brush to scrape the surface of the Black Spot. - Add stabilised granular chlorine, sprinkling it directly onto the Black Spot where possible (you may need to turn the pump off in order to get the water still enough to land the chlorine on the algae).

What causes black algae in a pool?

Any algae, including black algae, tend to bloom in bodies of pool water with a high pH level, low chlorine, bad circulation and filtration and not enough chlorine. It will flourish in a warm pool with lots of sunny days. Because of its appearance, black algae look a little frightening.

What kills algae fast?

Chlorine

What kills black algae in pool?

Use granular chlorine to shock your pool water and kill off bacteria. Use three times the amount you’d normally use (about three pounds per 10,000 gallons of water). Shock your pool in the evening and make sure to let your pool filter run for at least 24 hours after you add the shock treatment.

How do I get black algae off the bottom of my pool?

You can use a putty knife, a pumice stone, or even a hand-held wire brush to scrub the remaining black algae off the pool’s surfaces. We like to use chlorine tablets because now only do they offer a scrubbing surface, you’re also applying chlorine directly, which can start killing the bacteria while you scrub.Aug 12, 2020