Best Algenmittel Pool 2026

Advertising Disclosure

Last Updated - 03.02.2026

Best Choice

01

Nasswerk

NASSWERK® Algaecide for Pool Liquid 5L | Algae Killer Pool to Get Clear Green Pool Water | Pool Clear Anti Algae Agent Pool & Whirlpool | Pool Algae Killer with Clear Effect Algaecide Algae Prevention

Show more
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

The protection you need – no more green pool water. While pool algicide effectively combats algae, it is still particularly important for clear water to always combine it with other agents such as chlorine. These synergies ensure comprehensive disinfection and cleanliness of your pool.
The optimal use: a pH value between 7.0 - 7.4 is essential before using any pool chemistry. In case of existing algae infestation, mix our algae killer ideally in a bucket with water and then add to the pool water along the edge when the filter system is running.
Perfect and easy – don't let it get that far. Not only a reliable aid for already existing algae infestation, but also ideal as a preventive protection. Before filling the pool, simply apply undiluted with a sponge to the pool floor and walls (wear gloves).
Made in Europe: rely on European quality and safety. Our products are produced in Europe to the highest standards and stand for safety and purity. As experts in pool chemistry, we offer you everything you need for perfect pool care and safe bathing pleasure. Registration: BAuA N-113142
Algo-protection form: our pool algae repellent works absolutely quickly and effectively against the infestation of green algae and blue algae thanks to its innovative algo-shield formula. It is foam-free and ensures crystal clear and hygienic water - a must for a pleasant and clean bathing experience.

34,95 €
Value for Money

02

Nasswerk

NASSWERK® Algaecide for Pool Liquid 5L | Algae Killer Pool to Get Clear Green Pool Water | Pool Clear Anti Algae Agent Pool & Whirlpool | Pool Algae Killer with Clear Effect Algaecide Algae Prevention

Show more
9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

The protection you need – no more green pool water. While pool algicide effectively combats algae, it is still particularly important for clear water to always combine it with other agents such as chlorine. These synergies ensure comprehensive disinfection and cleanliness of your pool.
The optimal use: a pH value between 7.0 - 7.4 is essential before using any pool chemistry. In case of existing algae infestation, mix our algae killer ideally in a bucket with water and then add to the pool water along the edge when the filter system is running.
Perfect and easy – don't let it get that far. Not only a reliable aid for already existing algae infestation, but also ideal as a preventive protection. Before filling the pool, simply apply undiluted with a sponge to the pool floor and walls (wear gloves).
Made in Europe: rely on European quality and safety. Our products are produced in Europe to the highest standards and stand for safety and purity. As experts in pool chemistry, we offer you everything you need for perfect pool care and safe bathing pleasure. Registration: BAuA N-113142
Algo-protection form: our pool algae repellent works absolutely quickly and effectively against the infestation of green algae and blue algae thanks to its innovative algo-shield formula. It is foam-free and ensures crystal clear and hygienic water - a must for a pleasant and clean bathing experience.

33,20 €
03

Meinpool24.de

Meinpool24.de Algaecide Meinpool24.de 5 L for Pool Care Algae Prevention Liquid Algaecide Foam-Free

Show more
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

PREVENTIVE EFFECT: Effectively prevents the growth of algae in pool water.
LONG LASTING EFFECT: Protects the water for a longer period of time.
EASY TO USE: Liquid shape for easy dispensing and addition.
COMPATIBILITY Can be used with most disinfectants and pool chemicals.
CLEAR AND CLEAN WATER - The algicide effectively prevents the formation of all types of algae, whether single or multicellular algae. It is foam-free and ensures cheerful bathing fun.
Broad spectrum effect: fights different types of algae.
Registration number: N-111919. Use biocidal product with care. Always read the label and product information before use.

16,79 €
04

Meinpool24.de

Meinpool24.de Algaecide Meinpool24.de 5 L for Pool Care Algae Prevention Liquid Algaecide Foam-Free

Show more
9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

PREVENTIVE EFFECT: Effectively prevents the growth of algae in pool water.
LONG LASTING EFFECT: Protects the water for a longer period of time.
EASY TO USE: Liquid shape for easy dispensing and addition.
COMPATIBILITY Can be used with most disinfectants and pool chemicals.
CLEAR AND CLEAN WATER - The algicide effectively prevents the formation of all types of algae, whether single or multicellular algae. It is foam-free and ensures cheerful bathing fun.
Broad spectrum effect: fights different types of algae.
Registration number: N-111919. Use biocidal product with care. Always read the label and product information before use.

16,79 €
05

Höfer Chemie

Höfer Chemie 5 L Pool Algae Exterminator - Anti-algae Product for Swimming Pool & Pool - Fast Action Against Algae

Show more
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

The Algae Killer helps with algae problems in your swimming pool - easy application.
The Algae Killer by Höfer Chemie works quickly and reliably against algae in the pool.
Small quantities are enough to achieve a great effect. Clearwater bathing pleasure in your oasis of well-being.
Highly effective and efficient against all types of algae in swimming pools.

18,20 €
06

Höfer Chemie

Höfer Chemie 5 L Pool Algae Exterminator - Anti-algae Product for Swimming Pool & Pool - Fast Action Against Algae

Show more
9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

The Algae Killer helps with algae problems in your swimming pool - easy application.
The Algae Killer by Höfer Chemie works quickly and reliably against algae in the pool.
Small quantities are enough to achieve a great effect. Clearwater bathing pleasure in your oasis of well-being.
Highly effective and efficient against all types of algae in swimming pools.

18,20 €
07

STEINBACH

Steinbach Pool Care, Algaecide Liquid 5 L, Algaecides 0753505TDC0

Show more

33% Off
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Prevents algae growth
Highly concentrated, foam-free and liquid algae control with long-term effect
Helps remove cloudiness
For crystal clear swimming pool water

16,78 € 24,90 €(33% Off off)
08

Cristal

Cristal Algae Prevention 1 L - Prevents Algae Growth in the Pool - Algae Killer Algaecide Liquid - Algae Protection - Algaecide for Swimming Pool and Whirlpool

Show more
9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Use biocidal products carefully: always read the label and product information before use. BAuA Reg. No: N-100518
Skin-friendly and low-foam: thanks to the special formula, the algicide is skin-friendly and low foam. It is ideal for all pool types from 1,000 to 80,000 litres.
Long-lasting protection: effectively prevents algae growth and keeps your pool water crystal clear.
Easy to use: ideal for season preparation and regular care; dosage easily applicable for ongoing protection.
Easy dosage: for the initial treatment of a filled pool, dose 300 ml per 10 m³ of water. Weekly 80 ml per 10 m³ for post-treatment. In case of severe algae infestation, increase the dosage to 400 ml per 10 m³ and add 10 additional shock chlorine tablets.
Chlorine-free algaecide: our highly effective algaecide is chlorine-free, pH neutral and provides long-lasting protection against algae growth as well as crystal clear water.

10,95 €
09

Cristal

Cristal Algae Prevention 1 L - Prevents Algae Growth in the Pool - Algae Killer Algaecide Liquid - Algae Protection - Algaecide for Swimming Pool and Whirlpool

Show more
8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Use biocidal products carefully: always read the label and product information before use. BAuA Reg. No: N-100518
Skin-friendly and low-foam: thanks to the special formula, the algicide is skin-friendly and low foam. It is ideal for all pool types from 1,000 to 80,000 litres.
Long-lasting protection: effectively prevents algae growth and keeps your pool water crystal clear.
Easy to use: ideal for season preparation and regular care; dosage easily applicable for ongoing protection.
Easy dosage: for the initial treatment of a filled pool, dose 300 ml per 10 m³ of water. Weekly 80 ml per 10 m³ for post-treatment. In case of severe algae infestation, increase the dosage to 400 ml per 10 m³ and add 10 additional shock chlorine tablets.
Chlorine-free algaecide: our highly effective algaecide is chlorine-free, pH neutral and provides long-lasting protection against algae growth as well as crystal clear water.

10,95 €
10

PoolsBest

Poolsbest Algae Prevention, 1 L

Show more
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

POOLSBEST - The high-quality formula is based on the many years of experience of our research and development laboratory. Our products are subjected to constant and strict quality controls.
Long-lasting effect – the water purifier has a long-term effect to prevent algae and at the same time combat existing algae - an absolute must-have pool accessory
Highly concentrated and effective – thanks to the special chemistry of pool care, algae growth is prevented. The high-dose pool cleaner is free from chlorine and heavy metals and does not foam when cleaning, so it is also suitable for the countercurrent system.
Easy to use – Our algae protection impresses with its easy handling and dosage. First addition: add 300 ml of PoolsBest algae inhibitor extra 10 m³ of water. Additional dosage: add 100 ml PoolsBest algae prevention agent extra per 10 m³ to the water.
Crystal clear water – the high-quality algae protection from PoolsBest has a sustainable effect against algae problems. Perfect algae protection is created, and your water gets a clear effect.

14,95 €