The Best Pond Algaecides

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1
BioSafe Systems GreenClean Granular Algaecide - 20 lbs - String Algae Control for Koi Pond, Fountain, Waterfall, Water Features on Contact. EPA Registered.
  • Treats up to 40,000 gallons
  • Non-harmful to fish and aquatic plants when used as directed
  • Alternative to harsh chemicals – Chlorine, copper and phosphate-free
  • Begins working on contact, killing algae fast; results in 24 to 48 hours
  • Immediately begins fighting algae blooms, releasing vital oxygen into the water body as it biodegrades
2
Crystal Blue Copper Sulfate Algaecide - Aquatic Grade Granular Pond Algae Control - 5 lbs
  • 99% Copper Sulfate Pentahydrate
  • Controls most species of algae like filamentous, string algae and swimmers itch
  • Most effective when cast out on top of thick floating algae mats
  • Granular Copper Sulfate, 5 Lbs
  • Do Not Use with KOI or Goldfish
3
Fountain Algaecide and Clarifier, Formulated for Small Ponds, Water Features, 64oz
  • Fountain Algae Control Solution 64-Ounce Bottle, Not Safe For Fish
  • 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 only as directed to keep water safe for pond plants, surrounding wildlife and pets
  • Dose every three days until algae is controlled and then treat weekly
4
Fountain Algaecide and Clarifier, Formulated for Small Ponds, Water Features, 32oz
  • Fountain Algae Control Solution 32-Ounce Bottle, Not Safe For Fish
  • 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 only as directed to keep water safe for pond plants, surrounding wildlife and pets
  • Dose every three days until algae is controlled and then treat weekly
5
GreenClean Granular Algaecide - 8 lbs - String Algae Control for Koi Pond, Fountain, Waterfall, Water Features on Contact. EPA Registered
  • Treats up to 16,000 gallons
  • Non-harmful to fish and aquatic plants when used as directed
  • Alternative to harsh chemicals – Chlorine, copper and phosphate-free
  • Begins working on contact, killing algae fast; results in 24 to 48 hours
  • Immediately begins fighting algae blooms, releasing vital oxygen into the water body as it biodegrades
6
Aquascape 96053 2.5 Gallon Algaecide Algae Water Treatment, Green
  • Controls and treats algae growth in ponds
  • Helps to eliminate green water
  • Can be used in ponds with fish and plants
  • 1 bottle treats 100, 000 gallons / 378, 500 Liters of water
Sale7
Sanco Industries 88015 Fountain Algaecide, Clarifier Formulated for Small Ponds and Water Features, 8 ounces,1, Yellow
  • Fountain Algae Control Solution 8-Ounce Bottle, Not Safe For Fish
  • 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 only as directed to keep water safe for pond plants, surrounding wildlife and pets
  • Dose every three days until algae is controlled and then treat weekly
8
GreenClean Pro Granular Algaecide, 50 lbs
  • GreenCleanPRO Granular Algaecide is a fast-acting irrigation water treatment tool that is an integral part in proper irrigation system maintenance.
  • Utilizing BioSafe System’s patented activated peroxygen chemistry, GreenCleanPRO treats a broad spectrum of algae types, including filamentous and planktonic blue-green algae.
  • Due to its unique APC technology, GreenCleanPRO’s powerful oxidation reaction provides additional efficacy against general bacterial and fungal pathogens in the water column, including but not...
  • GreenCleanPRO kills and suppresses algae, reduces pathogenic organisms and is proven safe for all crops.
9
Crystal Clear Algae D-Solv - EPA Registered Algaecide - 1 Gallon Treats 46,080 Gallons
  • Fast-Acting EPA Registed 5.4% Algaecide
  • Great for Water Garden Ponds, Waterfalls & Fountains
  • 1 Gallon Treats Up To 46,080 Gallons
  • No More Green water
  • Stops Algae Growth, Works on String Algae
10
API POND ALGAEFIX Algae Control 1-Gallon Bottle
  • Contains one (1) API POND ALGAEFIX Algae Control 1-Gallon Bottle; treats up to 38,400 U.S Gallons
  • Helps resolve algae problems and controls the formation of new algae; works fast; effectively controls most types of algae including green water (Chlorella), string and hair algae (Cladophora),...
  • This EPA-registered pond algaecide will not harm fish, plants, surrounding wildlife and pets when used as directed
  • Does not contain copper
  • Before use, make certain that the pond/fountain has vigorous aeration; thoroughly mix into pond/fountain water and disperse evenly; Repeat dose every three days until algae is controlled; dose weekly...

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Last update on 2021-06-10 / Images from Amazon Product Advertising API

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