GreenClean® Granular Algaecide

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Rated 5.0 out of 5, based on 2 reviews
  • Control Algae Blooms At First Sight
  • Clear String Algae From Streams & Waterfalls
  • Remove Excess Organic Debris

GreenClean Granular Algaecide is a non-copper based algaecide that works on contact to control algae in ornamental ponds, watering gardens, and other water features. Through its patented formula, GreenClean® algae treatments immediately begin fighting algae blooms, releasing oxygen into the water body as it biodegrades. GreenClean Granular Algaecide also quickly eliminates algae on a wide variety of surfaces, such as water fountains, statues, and walkways. GreenClean® algae treatments come ready to use and begin working within 60 seconds of application.

Tech Specs

Usage Information

GreenClean(r) 2.5 Pounds
2.5 Pounds
GreenClean(r) 8 Pounds
8 Pounds
Application Granular Granular
Shelf Life 2 Years 2 Years

Dosage Rates

Pond Size (In Gallons)
High Curative Rate
Low Curative Rate
50 1 tbsp 0.5 tbsp
100 1.5 tbsp 1 tbsp
500 1/2 cup 1.5 tbsp
1,000 1 cup 3 tbsp
5,000 5 cups 1 cup
10,000 10 cups 2 cups

How To Apply

Directions for treating String Algae: Turn off circulation. Apply GreenClean® Granular Algaecide to affected areas, including waterfalls and streams. Turn pond circulation back on after letting GreenClean® work for 10 to 20 minutes.
Directions for treating Green Water (planktonic) Algae: Shock with GreenClean® at the High Curative Rate. Treat as needed once per week with GreenClean® at the Low Curative Rate.


Replacement Parts

Here are the replacement parts for GreenClean ® Granular Algaecide.

Weeds Treated

The first step towards effectively treating any pond weed is proper identification. GreenClean® Granular Algaecide is recommended for use against each of the weeds listed below. Click on your desired weed for more information and alternate control options.

Write a review
Good stuff if you use it properly!
Jul 20, 2010 | By N. Long
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Green Clean does exactly what it says it does! Anyone who gave Green Clean a bad review did not take the time to do their research. This procuct is a GRANULAR algaecide and NOT a liquid like AlgaeFix. The manufacturer clearly states that it has to make CONTACT with the algae to work. It is completely SAFE for all pets and wildlife if used properly. Once this granular algaecide makes contact with water and can't hurt a flea. It would most likely hurt a bird if the bird tried to eat it in its white powder state, but that would have to happen within a minute or two of adding it to your stream and waterfall (which is VERY unlikely since you would still be standing right next to the pond after adding the product, and most birds are not that brave). Litterally within seconds, the white powder disolves and in this state, the product is harmless to wildlife and your pets. Do your research, use the product properly and as stated in the directions and you will LOVE this product!!! Say goodbye to string algae!!! Green Clean works great and does as advertised!!!

Algae removal made easy!
Jul 27, 2010 | By Robert
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What an easy product to use with the benefit of great results in killing the string algae that had accumulated on my waterfall and rocks. My string algae was dying immediately. The added benefit is that it is safe for my dog once it is dissolved in the water. Great find!

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