10 Best Pond Algae Reviewed - Updated May 2024

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Sale1

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

Contains one (1) API POND ALGAEFIX Algae Control Solution 32-Ounce Bottle
Effectively eliminates green water algae, string and hair algae, blanketweed algae and others
Controls green water to keep pond water clean and clear in ornamental ponds and water gardens
Use as directed to keep water safe for fish, pond plants, surrounding wildlife and pets
Dose every three days until algae is controlled and then treat weekly

Sale2

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

KEEPS PONDS CLEAN & CLEAR: Algaway 5.4 is an E.P.A.-registered beneficial algaecide for outdoor ponds and other water features; It controls string algae, suspended algae blooms, and stops algae growth, creating a cleaner aquatic environment
CLEARER WATER: Algaway 5.4 Controls algae growth and eliminates green water in your self-contained ornamental pond; This allows you get more enjoyment from your fish and plants and see them clearly in any season
POND LIFE NOTES: Algaway 5.4 is 100% safe for all pond fish and plants which sets it apart from similar products; Not to be used with snails, shrimp and other crustaceans or mollusks
IMPORTANT NOTES: In ponds, ensure that water is well aerated via waterfall, fountain or other method to prevent fish loss; Aeration must be continuous; Highly concentrated formula shows results as little as 2 days; See usage chart for application guidance
PART OF MICROBE-LIFT'S POND CARE SYSTEM: Use Algaway 5.4 with other great products for your large or small backyard pond: PL Pond Bacteria and Outdoor Water Garden Cleaner, Sludge-Away Sludge and Muck Remover, Barley Straw Extract, and more

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

Highly Effective Algaecide: Fast-acting, broad-spectrum algae remover effective in controlling many different types of algae including green water algae, string or hair algae, and blanketweed.
No More Green Water: Perfect for controlling existing algae blooms and getting your pond back on track to being clean and clear. An easy-to-use alternative to draining and scrubbing your entire pond.
Will Not Harm Koi & Ornamental Plants: Algae D-Solv contains no copper and will not harm fish or decorative plants when used as directed. Before using algae treatment, ensure pond has aeration.
Easy Application: Apply 1 fl oz Algae D-Solv per 360 gallons of water. Once pond algae growth is under control, weekly doses will control algae growth and reduce pond maintenance.
Variety of Applications: A great algae maintenance solution for fountains, self-contained aquariums, backyard ponds, lined water gardens, and decorative ponds without any outflow.

Sale4

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

Controls many types of algae such as filamentous, chara, planktonic and swimmers itch for a beautiful and safe pond all year long
When used as directed, Crystal Plex is 100 percent safe for humans, fish, livestock, pets, birds, swimming and irrigation
Not for use in Koi, Goldfish, or Trout ponds
Treat only a third to half of your pond at a time
One gallon treats 1 surface acre 1-3 ft deep

Sale5

Summit Clear-Water Barley Straw Pond Treatment, 2-Pack, Treats upto 2000 Gallons, 1000 Gallons per Bale

The Original And Best Selling Barley Straw Pond Treatment From Summit
Keep Your Pond Water Clean And Clear Year-Round
Clear your pond, fountain and fish tank naturally
Acts As A Natural Filter To Keep Your Pond Clean And Clear
Each Bale Treats 1000 Gallons2 Bales Per Package

Bloom Buster Algae Control for Fish Ponds & Water Gardens - Gallon - Safe for Koi Fish, Goldfish & Plants - Controls Algae in Ponds & Water Features, EPA Registered

For small ponds with heavy algae growth, clean the excess algae off the sides and ornaments before adding Bloom Buster Liquid Algae Control.
This bottle treats 46,080 gallons of water.
Use 1/2 tsp to treat 30 gallons of water. Repeat dosage once per week for maintenance.
Effectively controls these types of freshwater algae: Green or Green water algae , Blue-Green algae, Black Beard algae, String or Hair algae, Blanket weed, in ornamental ponds and fountains containing live plants and fish.
Algae growth can appear as green water blooms, filamentous algae on plants, floating algal mats (blanket weed), algae, brown growth on ornaments, rocks, fountains, and waterfalls. Can be used with clarifiers. Can be used with pond dyes.

Sale7

API POND-ZYME SLUDGE DESTROYER Pond Cleaner With Natural Pond Bacteria And Barley, 1-Pound Container

Contains one (1) API POND-ZYME SLUDGE DESTROYER Pond Cleaner With Natural Pond Bacteria And Barley, 1-Pound Container
Contains natural active ingredients to break down fish waste and consume pond sludge
Breaks down dead algae and digests leaves and grass clippings
Helps to reduce overall pond maintenance and keep pond clean
Use twice a week for two weeks in ornamental ponds for start-up, end of season, then once every two weeks for regular maintenance

Tetra Pond Block 4 Count, Controls Algae Growth In Ornamental Fish Ponds (16735)

Helps control algae growth in ornamental fish ponds
Not recommended for use in ponds with live plants
Each block treats 250 gallons
Carefully follow dosage instructions
Not for use in non-ornamental ponds

The Pond Guy InstaFix Algae Control, Outdoor Water Garden, Fountain & Birdbath Algae Solution, EPA Registered Liquid Algaecide, Control Green Water & String Algae, Bird, Fish & Pet Safe, 1 Gallon

Fast Acting & Easy to Use -- InstaFix Algae Control helps you win the algae battle, offering fast-acting, easy-to-use algae control. Simply pour liquid treatment evenly around the pond's edge.
EPA Registered Algaecide -- Control excessive algae blooms, green water, blanketweed, or string algae in your water garden or koi pond. Eliminate existing algae growth and control future algae growth.
Controls String Algae & Algae Blooms -- Algae remover works best in water well aerated by an aerator, waterfall or fountain. Use InstaFix to treat existing algae growth or once a week for maintenance.
Combats Green Water -- Eliminates planktonic algae that causes green water. Treatment is ideal for small outdoor ponds, water gardens, birdbaths, fountains, or other decorative water features.
Safe for Fish and Plants -- When used as directed, treatment will not harm plants, fish, koi, goldfish, birds, livestock or wildlife. Do not use with snails, shrimp, clams, crustaceans or mollusks.

Jungle PL720-8W Pond Algae Relief, 8-Ounce, 237-ml

No More Green Water
No More Algae Growth
Also retards the growth of suspended algae blooms
Not for use with live plants

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