Best Pool Algaecides in 2026
Daisy
Last Updated: Feb 7, 2026
Daisy
Last Updated: Feb 7, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Doheny's Pool Supplies Fast | 9.86 | ✅ | ✅ | ✅ |
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!
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| OutDoorLivin | 9.86 | ✅ | ✅ | ✅ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
No waiting to swim - treated water can be used immediately.
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.
Apply under sunny conditions for most effective results. Apply initial treatment to a freshly filled pool or at first visible signs of algae growth.
This item is not for sale in Catalina Island
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Pools "n" Tools ٩(◕‿◕)۶ | 9.87 | ✅ | ✅ | ✅ |
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
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Additional minerals for Pool RX+ pool unit
Eliminates all types of Pool Algae
Reduces chemical demand
Effective for up to 6 Months
NSF/ANSI 50 Certified
New formula with 3 active Ingredients
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
BENEFITS: Quickly rids pools of mustard algae outbreaks
USE: Swimming may be resumed several hours after treatment
COMPATIBILITY: Works with all types of pools and all sanitizers including bromine, chlorine, salt water, ozone and minerals
FEATURES: Destroy deposits without leaving a residue
INCLUDES: One 3-lb container of Yellowtrine from Applied Biochemists
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Additional minerals for Pool RX pool unit
Eliminates all types of Pool Algae
Reduces chemical demand
Effective for up to 6 Months
NSF/ANSI 50 Certified
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| WIDESTEP | 9.74 | ❌ | ❌ | ❌ |
BENEFITS: Kills green and mustard algae
USE: Apply 8 fl oz per 10,000 gallons of pool water every 2 weeks
COMPATIBILITY: Works with chlorine and bromine sanitizers
CAUTION: Keep out of reach of children; See additional precautions and first aid on the back panel
INCLUDES: One 32-oz. bottle of Algaetrine from Applied Biochemists
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| D and J Liquidations | 9.66 | ❌ | ❌ | ❌ |
Quart black liquid algaecide poly 60 for swimming pools
Non-metallic & non-foaming algaecide
If pool is green use 11-17 oz per 10,000 gallons (29,090 - 18,823 gallons per bottle) & should be used with chlorine shock combined
Maintenance 2-4 oz per 10,000 gallons (160,000 - 80,000 gallons per bottle) every 5-7 days
Satisfaction Guaranteed
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
BENEFIT: Get long-lasting protection from extreme algae; This non-foaming algae control kills and prevents blooms of all algae types
OUR STRONGEST ALGAE CONTROL: Kills, prevents and protects against regrowth of heavy green, black and mustard swimming pool algae for up to 3 months
NON-FOAMING, FAST-ACTING: Add HTH Algae Guard Ultra directly to your swimming pool water and swim right away
COMPATIBLE WITH ALL POOLS: This non-staining formula is great for all swimming pools including vinyl-lined and saltwater systems
YOU'RE ALL CLEAR WITH HTH: For best results, use HTH Algae Guard Ultra every 3 months; Works great with HTH Shock products
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| The Web Markets | 4.87 | ❌ | ❌ | ❌ |
Multi-functional pool shock with algae-fighting crystals
Creates crystal clear water
Kills and prevents green, black and mustard pool algae
Kills bacteria
Improves filter performance
Swim-ready in 15 minutes
Reduces chlorine odor and eye irritation
Won't impact pH
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Best Algae Killer for Pools: Algaecide 60 is the best algae preventer for pools; it prevents all types of algae in all types of swimming pools
Effective Pool Treatment: Doheny's Algaecide 60 is metal-free and will leave no stains behind when applied
Algae Control for Pool: One bottle treats up to 160,000 gallons; use once a week to prevent algae growth
Effective Pool Algae Preventer: Our pool algaecide does not foam or cloud your pool water
Packaging: 40-ounce ready-to-use bottle with dosage stripe
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Applied Biochemists | 2 |
| Doheny's | 2 |
| Pool Rx | 2 |
| Bioguard | 1 |
| Clorox | 1 |
| Glb | 1 |
| Hth | 1 |
| Nu-Clo | 1 |
| Poolife | 1 |
We've carried out a comprehensive analysis of 2,147 reviews on pool algaecides, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select pool algaecides priced around $38.79, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 12 pool algaecides for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
We are dedicated to assisting our users in finding the right algaecides Products based on their needs, saving them considerable time when choosing which pool algaecides to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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