Kill. Algae. Fast.
Through the power of oxidation, GreenClean Granular Algaecide breaks down algae cells on contact, you can see it working! Its unique organic chemistry immediately begins fighting algae blooms and releasing vital oxygen into the water as it biodegrades. It can be used as a curative or preventative treatment in any water feature, including those that contain fish, plants and other aquatic life. Formulated without the use of harsh chemicals or chlorine, you are ensured there won’t be any negative effects to the aquatic ecosystem.
Works on Contact
Controls String Algae in Ponds and on Waterfalls
Eco-Friendly Chemistry & OMRI Listed
Copper Alternative
| Product Details |
|---|
| Form: Granular |
| Application: Ponds, Waterfalls |
| Target Algae: String Algae |
| Environmental Safety: Non-toxic to fish, plants, and aquatic life |
| Chemical Type: Organic oxidation-based |
FAQ
Can GreenClean Granular Algaecide be used in a pond with fish and plants?
Yes, it is safe for use in ponds containing fish, plants, and other aquatic life. It is formulated without harsh chemicals or chlorine and is biodegradable.
How quickly does it start working?
It begins working on contact with algae. Visible results can be seen shortly after application.
Is it safe for use in waterfalls and fountains?
Yes, it is effective for controlling string algae on waterfalls and in fountain features.




Gordon MacLeod –
Used it in my backyard pond after a string algae outbreak. The granules dissolved quickly and the algae started fading within a few days. My fish and plants seem unaffected. No strong smell or residue. Works well as a preventive measure too.
Kevin Harris –
Great product for a small pond with a waterfall. Applied once a month and the algae growth is under control. No fish stress or plant damage. The eco-friendly aspect is a big plus for my family.
Joseph Bell –
It works well for string algae, especially on the edges of the pond. A little slow to show full effect, but noticeable improvement after 3-4 days. Would recommend for pond owners with sensitive ecosystems.
Victor Miller –
Switched from copper-based algaecide after reading about its toxicity. This product is safe and effective. No fish deaths or plant loss. The granules are easy to spread and dissolve naturally.