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GreenClean Granular Algaecide (Pond Algae Control)

GreenClean Algaecide

GreenClean Granular Algaecide (Pond Algae Control)

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Price: Varies with Selection

Brand: BioSafe Systems


Pond Algaecide | GreenClean Granular Algaecide | BioSafe Systems

GreenClean Algaecide , a Worry-Free Algaecide that Works Instantly on Even your Toughest Algae. Unlike other aquatic algaecides on the market today, GreenClean works on contact to control algae (especially String Algae) in water gardens, ornamental ponds, fountains and other water features. It is a water activated algaecide and is safe for all animals once it is in liquid form. Avoid keeping algaecide granules where birds and small animals can ingest them.

GreenClean algaecide does not harm fish and aquatic life and starts working instantly. GreenClean algaecide immediately begins fighting algae blooms, releasing vital oxygen into the water as it biodegrades. SAFE for Koi and other pond fish and Aquatic Plants. It is recommended that you rinse it off the plant leaves to avoid burning.
EPA approved
Granular 2# Bottle, 8#, 20# and 50# Pail.

Application Rates:
100 gallons - 1.5 Tbs initially, then 1 Tbs weekly until pond is clear and 1/2tsp monthly for maintenance.

500 gallons - 4 oz initially, then 4 Tbs weekly until pond is clear and 1 Tbs monthly for maintenance.

1000 gallons - 8 oz initially, then 4 oz weekly until pond is clear and 1.5 Tbs monthly for maintenance. 

5000 gallons - 40 oz initially, then 21 oz weekly until pond is clear and 4 oz monthly for maintenance. 

2.5# bottle treats up to 5,000 gallons

8# pail treats up to 16,000 gallons

20# pail treats up to 40,000 gallons

50# pail treats up to 100,000 gallons

See all Pond algaecide products


Frequently Asked Questions

Q: Where can I use GreenClean?
A: GreenClean algaecide can be used in any water feature such as water gardens, ornamental waterfalls, fountains, and bird baths.

Q: Is it  safe for animals?
A: Yes. GreenClean algaecide granules are non-hazardous to animals such as birds, bees, and even your pets once diluted in water. Birds should not ingest the granuales. It is safe for them once the algaecide granuals are added to water.

Q: Will GreenClean algaecide harm my plants?
A: No. However, GreenClean’s concentrated algaecide granules may leave contact burn marks if left sitting on plant leaves.

Q: How does GreenClean work?
A: GreenClean works through a powerful oxidation reaction, breaking down algae cells on contact.

Q: How quickly does GreenClean work?
A: GreenClean begins working within 60 seconds of application. Results can be seen in 24-48 hrs.

Q: Has GreenClean been tested?
A: Yes. GreenClean is registered by the Environmental Protection Agency (EPA) and Organic listed by OMRI. GreenClean underwent extensive research and testing to be proven an effective algaecide.


Image 5.0 stars out of 5
Satisfied customer

I was dealing with a very bad algae problem, and had my pond cleaned out professionally, just weeks prior to the problem. I was so frustrated with the algae. I searched the internet for a "safe" way to eliminate algae from my pond, and came across this website. I read about this product and decided to give it a try. I followed the instructions on the canister,(I bought the 8 pound bucket)and at first I was disappointed, because I didn't see much of a change in the algae after the first day. But on about the 3-4 day, I could really see a huge difference. The water has cleaned up significantly, and the algae is almost completely gone. I can actually sit and enjoy my pond now without being frustrated by the algae. There is no more green junk floating on the water. I would highly recommend this product.

Reviewed Mon, Jun 03 2013 5:19 am by

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