Algaecides
If algae has taken over your pond or fountain, you might need an algaecide. Our fast acting algaecides are proven to treat green water, control existing algae, and prevent additional algae blooms.
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2 products
Filter and sort
2 products
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![32 oz. liquid algaecide treatment]()
Algaecide, 32 oz. $23.99 / -
![Green Stop® Liquid Algaecide, 16 oz. treatment]()
Green Stop® Liquid Algaecide, 16 oz. $16.99 /
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pond algae guide
Green water and string algae need different approaches. Our pond algae guide helps you spot the type, pick the right treatment, and keep it from coming back.
Water Treatments Guide
Find out more about our entire line of essential and problem-solving water treatments. Find full details on how and when to use water treatments, plus safety tips!