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The 8 Best copper algaecides of 2024

Are you trying to find copper algaecides among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling copper algaecides on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 11 hours of research and did 32 copper algaecides tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best copper algaecides you can buy today

No. 1
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
  • 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.
No. 2
Leslie's Copper Algaecide - Swimming Pool Algae Preventative - 1 Quart
  • Copper Pool Algaecide
  • Quickly kills algae in pool
  • Prevents future algae growth
  • Safe to swim immediately after application
No. 3
Doheny's Super Algaecide Plus | 100% Professional-Grade | Effective Against Most Types of Algae | 7.1% Chelated Copper (Chelated to Protect from Staining) | Non-Foaming Formula | 40oz Bottle
  • CONTAINS 7.1% CHELATED COPPER (Chelated To Protect From Staining), Providing Superior Algae-Fighting Power With Long Lasting Effects.
  • EFFECTIVE AGAINST MOST TYPES OF ALGAE - YET SAFE ENOUGH TO SWIM DIRECTLY AFTER USE!
  • INITIAL DOSAGE: 4 Oz. Per 10,000 Gallons; Maintenance Dosage: 2 Oz. Per 10,000 Gallons.
  • WILL NOT FOAM OR CLOUD YOUR SWIMMING POOL WATER AND IS EFFECTIVE IN ALL PARTS OF THE COUNTRY!
  • BUY IN BULK AND $AVE!
SaleNo. 4
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
SaleNo. 5
Copper Algaecide 7 Quart for Swimming Pools Hot Tubs & Spas - Up to 80,000 Gallons
  • Copper algaecide 7% quart for swimming pools hot tubs & spas
  • Maintenance is 1 ounce per 5,000 gallons bi-monthly (160,000 Gallons per bottle)
  • Initial spring opening/infested water treatment is 2 ounces per 5,000 gallons (80,000 Gallons per bottle)
  • All in one liquid algaecide use
  • Satisfaction Guaranteed
No. 6
Crystal Blue Copper Sulfate Algaecide - Granular Aquatic Grade Copper Sulfate for Pond Algae Control - 5 Pounds
  • 99% Copper Sulfate Pentahydrate. To be used for large bodies of water, not small decorative ponds, water features, or pools.
  • Controls most species of algae like filamentous, string algae and swimmers itch. Copper Sulfate should be used as a pond algae treatment on actively growing algae in water temperature above 60F.
  • Most effective when cast out on top of thick floating algae mats. Be aware of how much vegetation you are treating at one time. Eliminating too much at once can deplete the oxygen levels too quickly for your fish.
  • Granular Copper Sulfate, 5 lbs
  • DO NOT use in bodies of water that include Koi, Goldfish, Trout, or Grass Carp. These types of fish are sensitive to copper sulfate products.
No. 7
SePRO Captain XTR Liquid Copper Algaecide (2.5 Gallons)
  • OPTIMIZATION: Captain XTR increases the penetration of copper into algae cells, enhancing the efficacy of the product
  • INFUSION: Results in more copper penetrating algae cells, improving the control of unwanted species
  • RELIABILITY: Formulation is especially impactful when targeting tough to control mat-forming, colonial, and mucilaginous species
  • QUALITY: Best available technology for the control of all algae types.
  • SAFE: Waters treated with Captain XTR may be used for swimming, fishing, watering livestock, and irrigation of food and non-food crops (e.g. turf, ornamentals) during and after application
SaleNo. 8
In The Swim Black Algaecide – Eradicates Black Algae in Swimming Pools - Copper Sulfate Pentahydrate - 1 Quart
  • In The Swim's Black Algaecide is a specially formulated solution that eradicates black algae from your swimming pool.
  • Our solution contains 11.8% copper sulfate pentahydrate, which breaks down black algae's tough denfenses that other solutions cannot.
  • For the best results, it is recommended to thoroughly brush the surfaces of your pool, clean your filtration system, and super chlorinate your water prior to adding Black Algaecide.
  • This solution has the ability to be a treatment or maintence algaecide in your swimming pool.
  • NOTE: We are currently unable to ship Black Algaecide to DC, ID, MT, ND, RI, SD, UT, VT, AK or HI due to State Restrictions
No. 9
Pool Breeze Copper Algaecide Quantity: Set of 1
  • Removes and prevents green and yellow algae in pools
  • Prevent algae efficiently for up to 3 months
  • Can be used as part of the Optimight Tablet 3 Step System
No. 10
In The Swim Super Algaecide for Above Ground or Inground Swimming Pools – Low Odor, Non-Foaming Preventative for Yellow/Mustard Algae in Swimming Pools - 7.1% Chelated Copper – 1 Quart
  • In The Swim Super Algaecide is great for spring openings and routine maintenance to your swimming pool to keep algae growth at a minimum. This formula is copper based vs quaternary, which lasts longer and prevents foaming.
  • This powerful and highly concentrated copper-based super algaecide is used to eradicate small, isolated blooms to control and prevent yellow or mustard algae growth. The higher concentration allows for small easy-to-measure dosages allowing for fast-acting performance.
  • Our Super Algaecide contains 23.5% copper triethanolamine and 7.1% chelated copper. Unlike other copper based algaecide, the chelated copper will protect your swimming pool from staining
  • Super Algaecide does not contain harmful chemicals, making your pool safe to swim in immediately following use. Ultimately, this maximizes the amount of time you're able to spend in the water.
  • This highly effective formula is non-foaming, has low odor, and is great for those with a sensitivity to strong smells.
No. 11
Clorox Pool&Spa 43128CLX 42128CLX Pool Algaecide, 128 Fl Oz (Pack of 1)
  • Prevents and treats pool algae
  • Built-in clarifier
  • Non-foaming formula
  • Suitable for all pool types
SaleNo. 12
Applied Biochemists Pool 406103A Swimtrine Plus Swimming Pool Algae & Deposit Control, 32 fl oz
  • BENEFITS: Kills green and mustard algae
  • USE: Add a preventative dose biweekly and be algae free
  • COMPATIBILITY: Works with bromine, chlorine, salt water, ozone, bigaunide and minerals
  • FEATURES: Will not foam; Prevents regrowth of algae; Triple-chelated formula contains 9.3% copper
  • INCLUDES: One 32-oz container of Swimtrine Plus from Applied Biochemists
No. 13
Doheny’s Algaecide | 100% Professional-Grade | Effective Against Most Types of Algae | Works with Chlorine & Bromine Based Pools | Non-Foaming & Non-Staining Formula | Safe to Swim Right After Use
8 Consomer Reviews
Doheny’s Algaecide | 100% Professional-Grade | Effective Against Most Types of Algae | Works with Chlorine & Bromine Based Pools | Non-Foaming & Non-Staining Formula | Safe to Swim Right After Use
  • Algaecide for Pools: Fast-acting liquid algae control prevents algae in most forms and prevents future growth with regular maintenance
  • Swimming Pool Algaecide: Effective against most types of algae, yet safe enough to allow for swimming directly after use
  • Dosage Recommendation: 6.5 ounces per 10,000 gallons for weekly maintenance
  • Effective Pool Algae Preventer: Our pool algaecide does not foam or cloud your pool water
  • Packaging: 1-QT ready-to-use bottle with dosage stripe
SaleNo. 14
Clorox Pool&Spa 42232CLX 42032CLX Algae Eliminator, 1-Quart
  • Non-foaming formula
  • Effective kill and preventative treatment
  • Suitable for all pools
SaleNo. 15
BioGuard Banish Algicide - 1 Quart
  • Premium formula, highly effective, kills ALL types of algae
  • Fast-acting, non-foaming, producing results in 24 hours
  • Use in chlorine or bromine pools with all surfaces or filter types
SaleNo. 16
PoolRX+ pool unit 7.5k-20k gallons
  • Eliminates all types of Pool Algae
  • Reduces chemical demand
  • Effective for up to 6 Months
  • NSF/ANSI 50 Certified
  • Ideal for Chlorine, Salt, UV or Ozone systems
  • New formula now with 3 Active Ingredients
No. 17
GLB 71114A-02 Strike Out Algaecide, 2-Pack
  • Application: Dilute with at least nine parts of water. (See dilution chart on back of bottle. ) Sprinkle solution around edge of pool.
  • Chlorine, bromine and ozone sanitizers, as well as salt water pools.
  • No waiting to swim - treated water can be used immediately.
  • Item Package Dimensions: 10.0" L x 6.0" W x 3.0" H
No. 18
Pool Mate 1-2150-02 50 Pool Algaecide, 2-Pack
  • 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
  • Weekly maintenance dose: 2 or 3 oz per 10,000 gallons
No. 19
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
No. 20
In The Swim Algaecide 60 Plus for Swimming Pools - Non-Metallic, Low Odor, Non-Foaming Algae Bloom Preventative - Chlorine Sanitizer Compatible - 1 Quart
  • In The Swim Algaecide 60 Plus is perfect for preventing and controlling various types of algae including: green, yellow, black, and pink in your above ground or in-ground swimming pool.
  • Algaecide 60 Plus is a non-metallic, non-foaming, low odor formula specially formulated for pools with attached spas, waterfalls, or decorative fountains.
  • This product is pH tolerant which means it is effective in both acidic and alkaline pH ranges, thereby eliminating the need to alter pool chemistry prior to application.
  • Works nicely for pools using well water. Compatible with various sanitizers such as chlorine, bromine, biguanide, and salt systems.
  • We recommend and initial dosage of 6-11 ounces per 10,000 gallons, for standard maintenance 2-4 ounces per 10,000 gallons, and for visible algae 11-17 ounces per 10,000 gallons.

How to choose a good copper algaecides

Does the idea of finding a fantastic copper algaecides make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in copper algaecides. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top copper algaecides products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top copper algaecides on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top copper algaecides brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top copper algaecides based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the copper algaecides were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good copper algaecides, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your copper algaecides.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting copper algaecides for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our copper algaecides. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what copper algaecides should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on copper algaecides.