Best Algaecide

14
Cutrine-Plus Algaecide, 1 gal
6.3
Our Top 20 Best Algaecide list was created by The Man Post founder, Paul Crouch, to help users find products that are useful, affordable, and available. The list is updated every month.

Best Algaecide

HTH 67032 Super Algae Guard Swimming Pool Algaecide Cleanser, 1 qt

$19.99
$17.69
 in stock
8 new from $17.69
Free shipping
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • BENEFITS: Kills and prevents all algae types including green, black and mustard algae in your swimming pool so you can enjoy your summertime fun
  • USE: Apply directly to the pool for easy DIY pool care
  • COMPATIBILITY: Great for vinyl-lined and saltwater pool systems
  • FEATURES: Non-foaming algaecide formula destroys algae fast for crystal clear water; Swim 15 minutes after applying algaecide to your pool; Dissolves fast; Won’t fade vinyl pool liners
  • INCLUDES: One 1-qt container of Super Algae Guard for your swimming pool water

Pool RX 101066 6 Month Algaecide Treats 20k-30k gallons, Black

$59.99  in stock
14 new from $59.99
Free shipping
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • 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

In The Swim Swimming Pool Algaecide 60 Plus - 1 Quart

$27.99  in stock
2 new from $27.99
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • ! quart bottle
  • Non-metallic, non-foaming, low-odor polymer-based algaecide
  • Kills all types of algae, including pink algae
  • Not affected by pH
  • Recommended for use with well water

SeaKlear 90-Day Algae Prevention & Remover, 1 Qt

$27.99
$23.74
 in stock
15 new from $23.74
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • 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

Aqua Clear Pool Products Pool Algaecide 32 oz.

$18.84  in stock
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Kills and prevents green algae
  • Fast-acting algae treatment
  • For use with all pool types
  • Salt water compatible
  • 32 oz

API POND ALGAEFIX Algae Control 32-Ounce Bottle, FISHAQUARI (169G)

$32.69
$23.29
 in stock
16 new from $23.29
Free shipping
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Contains one (1) API POND ALGAEFIX Algae Control 32-Ounce Bottle
  • Effectively controls green water algae, string and hair algae, blanketweed algae
  • Controls green water to keep pond water clean and clear in ornamental ponds and water gardens
  • Will not harm fish and plants when used as directed.
  • Dose every three days until algae is controlled and then treat weekly

In The Swim Super Pool Algaecide - (2) 1/2 Gallon

$71.99  in stock
2 new from $71.99
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • NOTE: We are currently unable to ship SUPER ALGAECIDE to the state of California. We apologize for the inconvenience.
  • Provides superior algae-fighting power with long lasting effects
  • Safe enough to swim directly after use
  • Contains 7.1% Chelated Copper (chelated to protect from staining)
  • Non-foaming formula, with no odor

Cutrine Plus Granulated Algaecide, 30 lbs

$110.69  in stock
7 new from $110.69
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Rapid sinking granules for targeted delivery to bottom-growing algae
  • Visible reduction of algae growth 1-2 days
  • Chelating agents prevent the precipitation of copper with carbonates and bicarbonates in the water for longer activity
  • Stays active in the water longer than copper sulfate
  • Ideal for algae in deeper waters or bottom growing algae - use Cutrine Plus Algaecide (liquid) for algae on the surface or in the water column

Pool RX 101001 6 Month Algaecide Blue Treats 7.5k-20k gallons, Single, Unit

$79.99
$75.00
 in stock
7 new from $69.94
Free shipping
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • 6 month algaecide
  • Eliminates all types of algae
  • Reduces chemical demand
  • Effective for up to 6 months
  • Simplifies pool Care

Kem-Tek Pool and Spa 60-Percent Concentrated Algaecide, 1 Quart 2 Pack

$57.99  in stock
3 new from $57.99
Free shipping
Amazon.com
as of February 20, 2022 6:05 pm

Regal Algaecide 60 for Swimming Pools & Spas

$27.00  in stock
4 new from $27.00
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Concentrated algaecide for all types of algae
  • Should be part of a regular pool maintenance program to prevent algae
  • Weekly addition of this product will reduce overall maintenance costs and give pools desired water quality
  • The product of choice to help keep pools algae free
  • Compatible with pools using Salt Chlorine Generators

Fountec Fountain Algaecide Clarifier, 64 Ounce

$71.99
$44.95
 in stock
19 new from $44.95
Free shipping
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Fast acting and no chlorine needed
  • Kills and inhibits all types of algae growth in all types of water fountains and ponds
  • Treats over 2400 U.S. Gallons with recommended dosage: one drop per gallon of water per week
  • Keeps Water Crystal Clear and Algae-Free
  • Kills & Prevents Algae Growths

Pool Mate 1-2150-04 50 Pool Algaecide, 4-Pack

$89.99  in stock
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Non-Metallic Algaecide
  • For All Pool Types (Vinyl, Fiberglass, Concrete, Gunite, etc.)
  • Effective against all algae types (Green, Black, Yellow, Mustard, Pink)
  • Prevents and Kills Algae
  • Wait a minimum of 15 minutes after use

Cutrine-Plus Algaecide, 1 gal

$50.42  in stock
7 new from $50.42
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Effective control of forms planktonic and filamentous algae
  • ALGAE CONTROL USED BY THE PROS - WORKS FAST: Visible reduction in algae growth 1 – 2 days after application. Shows fast results on most types of algae.
  • DOUBLE CHELATED FORMULA: Double chelated formula prevents the precipitation of copper with carbonates and bicarbonates in the water
  • RECOMMENDED USE: Lakes, potable water reservoirs, ponds, fish hatcheries and raceways, crop and non-crop irrigation conveyance systems (ditches, canals and laterals)
  • Ideal for algae on the surface or in the water column. Works in hard water.

Doheny's Algaecide 60 (4 Qts. + 32 Fl. Oz. Free)

$98.96  in stock
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Our Most Popular Algaecide!
  • Metal-Free, Non-Staining
  • Arrives In 40-Fluid Ounce Bottle(s)
  • Does Not Foam Or Cloud Your Pool Water
  • Convenient Dosage View Stripe

Rx Clear 7% Copper Algaecide | Kills and Prevents Algae for In-Ground and Above Ground Swimming Pools | Safe Formula for Swimmers | One Quart Bottles | 2 Pack

$39.98  in stock
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • KEEP ALGAE AT BAY - This product is effective in controlling a broad range of algae. Especially effective against Chara(Stone wart), Spirogyra, Cladophora, Vaucheria Ulothrix, Microcystis, Oscillatoria, Mustard Algae and Black Algae. The triethanolamine in this product prevents the precipitation of the copper with the carbonates or bicarbonates in the water. Rx Clear Copper Algaecide is used to prevent and kill unwanted infestations in your swimming pool.
  • COAT THE WALL - Algaecide coats the walls of the swimming pool, keeping algae in suspension. Surfactant splits open algae cells, helping to destroy them. The Rx Clear Copper Algaecide coats the pool wall, keeping your swimming pool crystal clear.
  • BIWEEKLY MAINTENANCE - Each bottle of Algaecide is 32 ounces of fluid. Swimming pools require only 4 oz. of Rx Clear Swimming Pool Algaecide every two weeks per every 10,000 gallons of water.
  • SAFE TO SWIM - This fast acting treatment lets you swim directly after placing in your swimming pool. Algaecide can even beat black, green and mustard algae, all while being safe for swimmers.
  • SKIP THE WAIT - This product was made especially to control growth of algae in all types of swimming pools. Its long lasting action will control existing algae and subsequent doses will control recontamination...no waiting.

HTH 67037 Algae Guard Swimming Pool Algaecide Cleanser, 38 fl oz

$14.99  in stock
4 new from $14.99
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • BENEFITS: Kills green, black, and yellow algae and prevents future algae blooms in your swimming pool so you can get back to enjoying your summertime fun
  • USE: Apply directly to the pool regularly for easy DIY pool care; For best results, use with other HTH pool care products
  • COMPATIBILITY: Great for a variety of swimming pool types
  • FEATURES: Non-foaming algaecide formula destroys algae fast for crystal clear water; Swim 15 minutes after applying algaecide to your pool; 30% concentration of HTH signature algaecide
  • INCLUDES: One 36-oz container of Algae Guard 30 for your swimming pool water

BioGuard Algae All 60 (1 qt) (3 Pack)

$83.91  in stock
10 new from $83.90
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • BioGuard Algae All 60 (1 qt) (3 Pack)
  • Non Foaming Swimming Pool Algaecide
  • 60% Polyquat
  • Prevents all types of algae

Pool Mate 1-2150-02 50 Pool Algaecide, 2-Pack

$77.99
$59.43
 in stock
2 new from $59.43
Free shipping
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • Non-Metallic Algaecide
  • For All Pool Types (Vinyl, Fiberglass, Concrete, Gunite, etc.)
  • Effective against all algae types (Green, Black, Yellow, Mustard, Pink)
  • Prevents and Kills Algae
  • Wait a minimum of 15 minutes after use

PoolRx 101067 Black Units Swimming-Pool-Algaecides (4 Pack), 20,000-30,000 Gallon

$272.99  in stock
5 new from $272.99
Free shipping
Amazon.com
as of February 20, 2022 6:05 pm

Features

  • 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

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