10 bestAlgaecidesof February 2025
112M consumers helped this year.
1
![6 Pack of Multi-Shock by Pool Supplies Canada (450 g)](https://images-proxy.bestreviews.guide/BRs4I_-CWwH6mA5vLIWoKd_be0s=/0x150/https://m.media-amazon.com/images/I/71NHqtY5oRL._SL500_.jpg)
6 Pack of Multi-Shock by Pool Supplies Canada (450 g)
Pool Supplies Canada
![6 Pack of Multi-Shock by Pool Supplies Canada (450 g)](https://images-proxy.bestreviews.guide/BRs4I_-CWwH6mA5vLIWoKd_be0s=/0x150/https://m.media-amazon.com/images/I/71NHqtY5oRL._SL500_.jpg)
10.0
2
![Ultimate Pool Closing & Opening Kit (3 Products incl. 50% Algae Concentrate)](https://images-proxy.bestreviews.guide/OUH9uWQ9JlLzdcaj5kIAn3WcDNM=/0x150/https://m.media-amazon.com/images/I/51kLKq4HYjL._SL500_.jpg)
Ultimate Pool Closing & Opening Kit (3 Products incl. 50% Algae Concentrate)
Aqua Coastal
![Ultimate Pool Closing & Opening Kit (3 Products incl. 50% Algae Concentrate)](https://images-proxy.bestreviews.guide/OUH9uWQ9JlLzdcaj5kIAn3WcDNM=/0x150/https://m.media-amazon.com/images/I/51kLKq4HYjL._SL500_.jpg)
10.0
3
![Seachem Flourish Excel 500ml](https://images-proxy.bestreviews.guide/wy21PrALhZQwBrrcH2vhorcwLIk=/0x150/https://m.media-amazon.com/images/I/31t2w8gKsWL._SL500_.jpg)
Seachem Flourish Excel 500ml
Seachem
![Seachem Flourish Excel 500ml](https://images-proxy.bestreviews.guide/wy21PrALhZQwBrrcH2vhorcwLIk=/0x150/https://m.media-amazon.com/images/I/31t2w8gKsWL._SL500_.jpg)
9.8
4
![HTH EXTRA HTH Extra Super Shock 6kg 30640](https://images-proxy.bestreviews.guide/cTUPGcMcagJg23ibPUprTjv8pZc=/0x150/https://m.media-amazon.com/images/I/41Y43ROrwpL._SL500_.jpg)
HTH EXTRA HTH Extra Super Shock 6kg 30640
HTH EXTRA
![HTH EXTRA HTH Extra Super Shock 6kg 30640](https://images-proxy.bestreviews.guide/cTUPGcMcagJg23ibPUprTjv8pZc=/0x150/https://m.media-amazon.com/images/I/41Y43ROrwpL._SL500_.jpg)
9.6
5
![SpaChoice 472-4-8230-04 Sodium Bromide for Hot Tub, 2-Pounds, 4-Pack](https://images-proxy.bestreviews.guide/pnlDnvlur4vPPwsPWchVQSCKW6g=/0x150/https://m.media-amazon.com/images/I/51qsv3ujw6L._SL500_.jpg)
SpaChoice 472-4-8230-04 Sodium Bromide for Hot Tub, 2-Pounds, 4-Pack
SpaChoice
![SpaChoice 472-4-8230-04 Sodium Bromide for Hot Tub, 2-Pounds, 4-Pack](https://images-proxy.bestreviews.guide/pnlDnvlur4vPPwsPWchVQSCKW6g=/0x150/https://m.media-amazon.com/images/I/51qsv3ujw6L._SL500_.jpg)
9.4
Other
6
![Algae Shield Liquid Pool Algaecide (50% Strength) (Copper and Stain Free) (1L)](https://images-proxy.bestreviews.guide/OqlYBs3iCgZoJMM8ifD9FPErdDg=/0x150/https://m.media-amazon.com/images/I/41JeDOZXHwL._SL500_.jpg)
Algae Shield Liquid Pool Algaecide (50% Strength) (Copper and Stain Free) (1L)
Aqua Coastal
![Algae Shield Liquid Pool Algaecide (50% Strength) (Copper and Stain Free) (1L)](https://images-proxy.bestreviews.guide/OqlYBs3iCgZoJMM8ifD9FPErdDg=/0x150/https://m.media-amazon.com/images/I/41JeDOZXHwL._SL500_.jpg)
9.2
7
![3 Pack of Multi-Shock by Pool Supplies Canada (450 g)](https://images-proxy.bestreviews.guide/hjZm7Bc-rfUxSGVxQeSbHYjenac=/0x150/https://m.media-amazon.com/images/I/61SSWLVQw0L._SL500_.jpg)
3 Pack of Multi-Shock by Pool Supplies Canada (450 g)
Pool Supplies Canada
![3 Pack of Multi-Shock by Pool Supplies Canada (450 g)](https://images-proxy.bestreviews.guide/hjZm7Bc-rfUxSGVxQeSbHYjenac=/0x150/https://m.media-amazon.com/images/I/61SSWLVQw0L._SL500_.jpg)
8.9
33% off
8
![Nutrafin A7915 Clear Water Clarifier, 4.1-Ounce,Beige](https://images-proxy.bestreviews.guide/nOhdlm35CL2yGgSubSG9urWCeKc=/0x150/https://m.media-amazon.com/images/I/41ycKt+oHUL._SL500_.jpg)
Nutrafin A7915 Clear Water Clarifier, 4.1-Ounce,Beige
Hagen
![Nutrafin A7915 Clear Water Clarifier, 4.1-Ounce,Beige](https://images-proxy.bestreviews.guide/nOhdlm35CL2yGgSubSG9urWCeKc=/0x150/https://m.media-amazon.com/images/I/41ycKt+oHUL._SL500_.jpg)
8.7
9
![Copper Test Strips for Mineral Pools - Works with Pool Ionizers, Mineral Cartridges, Copper Sulphate and Copper Algaecides - Part CBI-Cut](https://images-proxy.bestreviews.guide/dnYGvyjCwFypujLr9vlpWanH2SU=/0x150/https://m.media-amazon.com/images/I/41n+7A1BlOL._SL500_.jpg)
Copper Test Strips for Mineral Pools - Works with Pool Ionizers, Mineral Cartridges, Copper Sulphate and Copper Algaecides - Part CBI-Cut
Think Minerals
![Copper Test Strips for Mineral Pools - Works with Pool Ionizers, Mineral Cartridges, Copper Sulphate and Copper Algaecides - Part CBI-Cut](https://images-proxy.bestreviews.guide/dnYGvyjCwFypujLr9vlpWanH2SU=/0x150/https://m.media-amazon.com/images/I/41n+7A1BlOL._SL500_.jpg)
8.4
10
![BioGuard Polygard (3.78 L) Algae Preventer (SKU 3668)](https://images-proxy.bestreviews.guide/ptv4QI2m6Te89UBeSKAdz7N2JaM=/0x150/https://m.media-amazon.com/images/I/41FGDw1K0IL._SL500_.jpg)
BioGuard Polygard (3.78 L) Algae Preventer (SKU 3668)
BioGuard
![BioGuard Polygard (3.78 L) Algae Preventer (SKU 3668)](https://images-proxy.bestreviews.guide/ptv4QI2m6Te89UBeSKAdz7N2JaM=/0x150/https://m.media-amazon.com/images/I/41FGDw1K0IL._SL500_.jpg)
8.1
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