20 Best Copper Sulfate Algae Control [2024]

Are you looking for the best Copper Sulfate Algae Control? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Copper Sulfate Algae Control.

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# Preview Product
1 Crystal Blue Copper Sulfate Algaecide - Aquatic Grade Granular Pond Algae Control - 5 lbs Crystal Blue Copper Sulfate Algaecide - Aquatic Grade Granular Pond Algae Control - 5 lbs
2 Copper Sulfate Crystals 99.8% Pure - 10 Lbs. Copper Sulfate Crystals 99.8% Pure - 10 Lbs.
3 SeaKlear 90-Day Algae Prevention & Remover, 1 Qt SeaKlear 90-Day Algae Prevention & Remover, 1 Qt
4 Crystal Plex – Lake and Pond Algaecide Treatment – Liquid Copper Algaecide Kills and Prevents... Crystal Plex – Lake and Pond Algaecide Treatment – Liquid Copper Algaecide Kills and Prevents...
5 BioSafe Systems 3002-8 GreenClean Granular Algaecide, 8 Pounds BioSafe Systems 3002-8 GreenClean Granular Algaecide, 8 Pounds
6 Southern Ag Copper Sulfate Granular Crystals, 1 Pound Southern Ag Copper Sulfate Granular Crystals, 1 Pound
7 Root Destroyer – 2lbs of Pure Copper Sulfate Crystals - Root Killer for Sewer & Pipe Lines- Stops... Root Destroyer – 2lbs of Pure Copper Sulfate Crystals - Root Killer for Sewer & Pipe Lines-...
8 Leslie’s Algaecide Algae Preventer [1 Bottle = 1 Quart] Leslie’s Algaecide Algae Preventer [1 Bottle = 1 Quart]
9 Rx Clear 7% Copper Algaecide | Kills and Prevents Algae for In-Ground and Above Ground Swimming... Rx Clear 7% Copper Algaecide | Kills and Prevents Algae for In-Ground and Above Ground Swimming...
10 DWI Formula F-30 Algae Control (1 Gal.) DWI Formula F-30 Algae Control (1 Gal.)
11 Copper Sulfate Mini Crystals 50lb Bag - EPA 99% Pure Copper Sulfate Mini Crystals 50lb Bag - EPA 99% Pure
12 Fountain Algaecide and Clarifier - 8oz - Kills and Inhibits All Types of Algae Growth, Formulated... Fountain Algaecide and Clarifier - 8oz - Kills and Inhibits All Types of Algae Growth, Formulated...
13 Copper Sulfate Pentahydrate - 25.2% Cu - 1 Pound - Easy to Dissolve - Powder Copper Sulfate Pentahydrate - 25.2% Cu - 1 Pound - Easy to Dissolve - Powder
14 Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 1 Pound Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 1 Pound
15 Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce
16 Copper Sulfate Pentahydrate 99.9% Crystals - 10 Lbs. Copper Sulfate Pentahydrate 99.9% Crystals - 10 Lbs.
17 Cutrine-Plus Algaecide, 1 gal Cutrine-Plus Algaecide, 1 gal
18 Copper Sulfate Pentahydrarte 99% Crystals 50 lb bag Copper Sulfate Pentahydrarte 99% Crystals 50 lb bag
19 Copper Sulfate Crystals 99.8% [Fine Grade] - 10 Lbs. Copper Sulfate Crystals 99.8% [Fine Grade] - 10 Lbs.
20 Alpha Chemicals Copper Sulfate Pentahydrate - 25.2% Cu - 5 Pounds - Easy to Dissolve - Powder Alpha Chemicals Copper Sulfate Pentahydrate - 25.2% Cu - 5 Pounds - Easy to Dissolve - Powder
SaleBestseller No. 1
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
Bestseller No. 2
Copper Sulfate Crystals 99.8% Pure - 10 Lbs.
  • Made in the USA
  • Fine Grade
  • Versatile Farm Chemical
  • Heavy Duty 3 Mil Resealable Bag
SaleBestseller No. 3
SeaKlear 90-Day Algae Prevention & Remover, 1 Qt
  • 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
SaleBestseller No. 4
Crystal Plex – Lake and Pond Algaecide Treatment – Liquid Copper Algaecide Kills and Prevents...
  • 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
SaleBestseller No. 5
BioSafe Systems 3002-8 GreenClean Granular Algaecide, 8 Pounds
  • GREENCLEAN GRANULAR ALGAECIDE: This 8-pound bucket treats and controls algae in up to 16,000 gallons of water for your in-home or residential ponds,...
  • IDEAL FOR PONDS WITH FISH AND AQUATIC LIFE: This product is not harmful to fish or aquatic plants when used as directed and can be used while your...
  • CLEAN FORMULA: Our clean formula is a great alternative to harsh chemicals and it is chlorine, copper, and phosphate-free; that means it won’t harm...
  • WORKS FAST: This product is quick and efficient and begins working on contact, killing algae fast; you'll see full results in 24 to 48 hours after...
  • TREATS TWO ALGAES: GreenClean Granular Algaecide is effective and offers immediate results when eliminating blue-green and string algae; It kills on...
Bestseller No. 6
Southern Ag Copper Sulfate Granular Crystals, 1 Pound
  • Apply to grass lawns only, do not use on or around shrubs, trees, or ornamental plantings. Spray lawns when the air is calm and do not cut the grass 1...
  • Use on: Vegetables, flowers, shrubs and lawns. For: Use in potassium low soils. Helps plants form healthier, stronger roots, stems, and tubers.
  • Controls Surface Algae kills roots that clog sewer lines Contains 99% Copper Sulfate.
  • Trees: 1/2 lb. for each in of trunk diameter. See label for other rates. Application: Spread over treatment area and water in. Product Label
  • Sulfate of Potash 0-0-50 Fertilizer Corrects Potassium deficiency in avocado, beans, corn, cherries, citrus, grapes, palms & roses Strengthens plants,...
SaleBestseller No. 7
Root Destroyer – 2lbs of Pure Copper Sulfate Crystals - Root Killer for Sewer & Pipe Lines- Stops...
  • Made up of copper sulfate crystals that will kill invasive septic and sewer pipe roots without harming your tree.
  • Root Destroyer will temporarily reduce bacterial action, but will return to normal approximately 15 days after treatment.
  • Only roots inside the leach line will be killed. Do not apply through sink or tub drains.
  • Use Root Destroyer at the rate of 2 lb. in an active 300 gallon septic tank 2 twice a year or anytime you have reduced water flow thought to be caused...
  • In 1/2 lb. increments, pour Root Destroyer into the toilet bowl nearest the sewer line and flush; repeat this process until the recommended dose has...
Bestseller No. 8
Leslie’s Algaecide Algae Preventer [1 Bottle = 1 Quart]
  • Copper Pool Algaecide
  • Quickly kills algae in pool
  • Prevents future algae growth
  • Safe to swim immediately after application
Bestseller No. 9
Rx Clear 7% Copper Algaecide | Kills and Prevents Algae for In-Ground and Above Ground Swimming...
  • KEEP ALGAE AT BAY - This product is effective in controlling a broad range of algae. Especially effective against Chara(Stone wart), Spirogyra,...
  • COAT THE WALL - Algaecide coats the walls of the swimming pool, keeping algae in suspension. Surfactant splits open algae cells, helping to destroy...
  • 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...
  • 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...
  • 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...
Bestseller No. 10
DWI Formula F-30 Algae Control (1 Gal.)
  • ✅ TREATS MORE THAN PONDS & LAKES: DWI F-30 Algae Control is a liquid algaecide made for use in reservoirs, fire ponds, ornamental lakes, ponds, drip...
  • ✅ CONTROLS MOST ALGAE: This algaecide kills planktonic, filamentous, hydrilla, chara and nitella algae.
  • ✅ CONTAINS DOUBLE CHELATED COPPER: The active ingredient copper sulfate pentahydrate (10.9 percent) controls algae at 0.2 ppm to 0.4 ppm copper. The...
  • ✅ TOXICITY AND APPLICATION: DWI F-30 Algae Control can be toxic to fish and other aquatic life (like any copper based algaecide) if not applied...
  • ✅ TREATMENT RANGE: This 1 quart / 32 fluid ounce container treats 1/4 surface acre, or about 81,462.9 gallons of water.
Bestseller No. 11
Copper Sulfate Mini Crystals 50lb Bag - EPA 99% Pure
  • Copper Sulfate Bulk
  • Algaecide
  • Root Kill for Septic and Plumbing
  • EPA copper sulfate
  • 5+ MM
SaleBestseller No. 12
Fountain Algaecide and Clarifier - 8oz - Kills and Inhibits All Types of Algae Growth, Formulated...
  • Fountain Algae Control Solution 8-Ounce Bottle. Also available in 32 oz. and 64 oz. bottles. DO NOT USE WITH FISH
  • Effectively eliminates green water algae, string and hair algae, blanketweed algae and others. Non-hazardous, non-staining, and non-foaming when used...
  • 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. Not safe for fish
  • Dose every three days until algae is controlled and then treat weekly. Maintain by using .75 oz. of product per 1,000 gallons of water every 5 days
Bestseller No. 13
Copper Sulfate Pentahydrate - 25.2% Cu - 1 Pound - Easy to Dissolve - Powder
  • Chemical Structure - CuSO4*5H2O
  • Powder Form - Dissolves Easily
  • Great for crystal growing and other experiments
  • We sell bulk for so many different uses, we don't include any specific use instructions
Bestseller No. 14
Copper Sulfate Pentahydrate - Crystals - 25.2% Cu - 1 Pound
  • Chemical Structure - CuSO4*5H2O
  • Crystal Form (see second picture)
  • Great for crystal growing and other experiments
  • We sell bulk for so many different uses, we don't include any specific use instructions
SaleBestseller No. 15
Tetra 77188 Algae Control Treats 36000 gallons, 101.4-Ounce
  • CONTROLS ALGAE Liquid formula effectively combats green water string and hair algae and blanketweed to keep pond water clear
  • FOR ORNAMENTAL PONDS & FOUNTAINS Use only in fountains and established ponds with synthetic liners
  • SAFE FOR PLANTS & ORNAMENTAL FISH Use with live plants and fish in ornamental outdoor ponds when used as directed
  • USAGE Use 10 mL for every 120 gallons of pond water
  • TREATMENT This 101
SaleBestseller No. 16
Copper Sulfate Pentahydrate 99.9% Crystals - 10 Lbs.
  • Made in The USA
  • Wood & Canvas Preservative
  • A Versatile Farm Chemical.
  • Sold As Ingredient
  • Heavy Duty 3 Mil Resealable Bag
SaleBestseller No. 17
Cutrine-Plus Algaecide, 1 gal
  • 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...
  • 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,...
  • Ideal for algae on the surface or in the water column. Works in hard water.
Bestseller No. 18
Copper Sulfate Pentahydrarte 99% Crystals 50 lb bag
  • Copper Sulfate Bulk
  • Convenient Granular Size
  • Copper Sulfate Pentahydrate
  • 3-5 MM
  • Effective at Many Uses
Bestseller No. 20
Alpha Chemicals Copper Sulfate Pentahydrate - 25.2% Cu - 5 Pounds - Easy to Dissolve - Powder
  • Chemical Structure - CuSO4*5H2O
  • Powder Form - Dissolves Easily
  • Great for crystal growing and other experiments
  • We sell bulk for so many different uses, we don't include any specific use instructions

Having trouble finding a great Copper Sulfate Algae Control?

This problem is well understood by us because we have gone through the entire Copper Sulfate Algae Control research process ourselves, which is why we have put together a comprehensive list of the best Copper Sulfate Algae Controls available in the market today.

After hours of searching and using all the models on the market, we have found the best Copper Sulfate Algae Control for 2023. See our ranking below!

How Do You Buy The Best Copper Sulfate Algae Control?

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We understand, because we’ve already gone through the whole process of researching Copper Sulfate Algae Control, which is why we have assembled a comprehensive list of the greatest Copper Sulfate Algae Control available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Copper Sulfate Algae Control that you consider buying. Your questions might include the following:

  • Is it worth buying an Copper Sulfate Algae Control?
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We’re convinced that you likely have far more questions than just these regarding Copper Sulfate Algae Control, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Copper Sulfate Algae Control, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Copper Sulfate Algae Control. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Copper Sulfate Algae Control buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Copper Sulfate Algae Control currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Copper Sulfate Algae Control has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Copper Sulfate Algae Control?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Copper Sulfate Algae Control.
  5. Customer Ratings: Number ratings grade Copper Sulfate Algae Control objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Copper Sulfate Algae Control.
  7. Product Quality: You don’t always get what you pay for with an Copper Sulfate Algae Control, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Copper Sulfate Algae Control is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Copper Sulfate Algae Control information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

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FAQ:

Q: What does copper sulfate do to algae?

A: Copper in copper sulfate binds to proteins in fungi and algae. This damages the cells causing them to leak and die. In snails, copper disrupts the normal function of the skin cells and enzymes.

Q: Will copper help control algae?

A: Copper can be used to control algae in ponds, including filamentous and higher algae such as Chara (“Stink weed”). There have been some efforts to use copper to reduce the abundance of algae that cause off-flavor in catfish, but not enough is known yet to make any definite recommendations.

Q: What are the dangers of copper sulfate?

A: ACUTE TOXICITY. Copper sulfate is only moderately toxic upon acute oral exposure ( 17 ). There have been reports of human suicide resulting from the ingestion of gram quantities of this material ( 10 ). The lowest dose of copper sulfate that has been toxic when ingested by humans is 11 mg/kg ( 8 ).

Q: Is copper sulfate too dangerous?

A: Copper sulfate can cause severe eye irritation . Eating large amounts of copper sulfate can lead to nausea, vomiting, and damage to body tissues, blood cells, the liver, and kidneys. With extreme exposures, shock and death can occur.