10 Best the algaecide for ponds in the US

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Last Updated - May 4, 2024

Best Choice

1

APPLIED BIOCHEMISTS

Cutrine Plus Granulated Algaecide, 30 lbs
9.8

Exceptional

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

8.7
Simple to use

8.0
worth the money
- Amazon
- Walmart
More info

Why we love it

Rapid sinking granules

Visible algae reduction

Longer activity in water
Value for Money

2

CrystalClear

CrystalClear Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 46,080 Gallons, 1 Gallon

20% Off
9.5

Excellent

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.
More info

Why we love it

CrystalClear Algae D Solv targets string algae, blanket weed, and green water.

Apply Algae D Solv when needed to kill active algae blooms, then weekly to control growth and reduce maintenance.

Algae D Solv is safe for fish, plants, pets, and pond wildlife when used as directed.
3

API

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

28% Off
9.3

Excellent

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

8.7
Simple to use

8.0
worth the money

8.0
Sheerness
- Amazon
More info

Why we love it

Quickly clears algae

Safe for fish and plants

Easy to use
4

APPLIED BIOCHEMISTS

Cutrine-Plus Algaecide, 1 gal
9.2

Excellent

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

8.7
Simple to use

8.0
worth the money

8.0
Sheerness
More info

Why we love it

Fast results: 1 2 days

Prevents precipitation of copper

Ideal for surface/water column algae
5

MICROBE-LIFT

MICROBE-LIFT ALGA08 Algaway 5.4 Algae Control Treatment for Ponds and Water Gardens, Safe for Koi Fish, Goldfish, Plants, and Decorations, 8 Ounces
9.1

Excellent

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

8.4
Simple to use

8.0
worth the money

8.0
Aroma
More info

Why we love it

Enhances pond clarity

Keeps water clean

Safe for fish plants
6

BioSafe Systems

BioSafe Systems 3002-8 GreenClean Granular Algaecide String Algae Control for Koi Ponds, Fountains, Waterfalls, Water Features on Contact, 8 lbs, EPA Registered
8.8

Very Good

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

8.0
Simple to use

8.0
worth the money
- Amazon
- Walmart
More info

Why we love it

Kills algae without harming fish or plants

Easy to use

Works quickly
7

Crystal Blue

Crystal Plex - Lake and Pond Algaecide Treatment - Liquid Copper Algaecide Kills and Prevents Various Types of Algae (Planktonic, Filamentous, Chara) - 1 Gallon Treats up to 1 Acre

10% Off
8.7

Very Good

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

8.0
Simple to use

8.0
worth the money

8.0
Sheerness
More info

Why we love it

Controls many types of algae

Safe for humans, fish, livestock, and pets

Not for use in ponds with Koi, Goldfish, or Trout
8

CrystalClear

CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs
8.6

Very Good

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

8.0
worth the money

8.0
Simple to use

8.0
Sheerness
- Amazon
More info

Why we love it

EPA approved

Safe for fish

Kills algae fast
9

Sanco Industries

Fountain Algaecide and Clarifier - 8oz - Kills and Inhibits All Types of Algae Growth, Formulated for Small Ponds and Water Features, Treats up to 8,000 Gallons
8.4

Good

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

9.5
Easy to build

9.5
Simple to use

9.1
worth the money
- Amazon
More info

Why we love it

Fountain Algae Control Solution is available in 8 ounce, 32 ounce, and 64 ounce bottles.

Fountain Algae Control Solution effectively eliminates green water algae, string and hair algae, blanketweed algae, and others.

Fountain Algae Control Solution is non hazardous, non staining, and non foaming when used as directed.
10

TotalPond

TotalPond A20036 Pond Algaecide, 32-Ounce
8.1

Good

Our Rating

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

8.7
Simple to use

8.0
worth the money
- Amazon
- Walmart
More info

Why we love it

Fast acting

Safe for fish/plants

Balances water

10 Best the algaecide for ponds in the US

1

Cutrine Plus Granulated Algaecide, 30 lbs

8.7

8.0

Why we love it

2

CrystalClear Algae D-Solv Pond Algae Control, Fast-Acting EPA Registered Algaecide, Use in Fountains & Outdoor Ponds Containing Koi & Other Fish, Treats 46,080 Gallons, 1 Gallon

Why we love it

3

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

8.7

8.0

8.0

Why we love it

4

Cutrine-Plus Algaecide, 1 gal

8.7

8.0

8.0

Why we love it

5

MICROBE-LIFT ALGA08 Algaway 5.4 Algae Control Treatment for Ponds and Water Gardens, Safe for Koi Fish, Goldfish, Plants, and Decorations, 8 Ounces

8.4

8.0

8.0

Why we love it

6

BioSafe Systems 3002-8 GreenClean Granular Algaecide String Algae Control for Koi Ponds, Fountains, Waterfalls, Water Features on Contact, 8 lbs, EPA Registered

8.0

8.0

Why we love it

7

Crystal Plex - Lake and Pond Algaecide Treatment - Liquid Copper Algaecide Kills and Prevents Various Types of Algae (Planktonic, Filamentous, Chara) - 1 Gallon Treats up to 1 Acre

8.0

8.0

8.0

Why we love it

8

CrystalClear AlgaeOff Pond & Water Garden Scum Cleaner, Waterfall & Rock Slime Remover, String Algae Killer, Green Stain Treatment, EPA Registered Algaecide, Plant, Koi Fish, Bird & Pet Safe, 8 lbs

8.0

8.0

8.0

Why we love it

9

Fountain Algaecide and Clarifier - 8oz - Kills and Inhibits All Types of Algae Growth, Formulated for Small Ponds and Water Features, Treats up to 8,000 Gallons

9.5

9.5

9.1

Why we love it

10

TotalPond A20036 Pond Algaecide, 32-Ounce

8.7

8.0

Why we love it

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