API Pondcare Microbial Algae Clean Green Water Biological Inhibitor, 1-gal bottle

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About This Item

Details

  • Helps control green water algae for clearer pond water and water gardens housing live plants and fish.
  • Formulated to help remove potentially dangerous debris, organic sludge and pond odors.
  • Serves as an excellent alternative approach to algae control.
  • Registered with the Environmental Protection Agency (EPA) for a solution you can trust.
  • Available in three sizes—a 16-oz bottle, a 64-oz bottle and a 1-gallon bottle.

Instructions

Questions & Answers

5 Customer Questions

Does this contain bacteria and algaecide? Can I use this product instead of Algaefix? Also, if I use this *with* Algaefix, will that overdose the tank?

Answer by Chewy • Sep 08, 2020
Microbial Algae Clean is a bacterial supplement and Algaefix is an algaecide. They can used together with no adverse effects.

Will this be harmful to domestic pets and wildlife?

Answer by Chewy • Sep 16, 2019
API Pondcare Microbial Algae Clean Green Water Biological Inhibitor is an alternative, all-natural approach to algae control as the first bacterial algaecide registered with the Environmental Protection Agency. This product contains patented bacteria to control green water algae in ponds with live fish and plants, and helps establish and maintain a clean, odor-free and algae-free pond. Microbial Algae Clean promotes a cleaner pond environment by eliminating organic sludge and debris, and will not harm live plants or fish.

Is this product safe for a bird bath water fountain?

Answer by Chewy • Jul 05, 2020
This Algae Control is intended to be used in ponds only.

Can I use it in a tank with snails is it safe for snails?

Answer by Chewy • Apr 28, 2025
This product can be used in ponds that also contain snails and other inhabitants. This formula has a biologically active ingredient – these are non-pathogenic bacteria that work to outcompete algae within ponds.
Reviews
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4.5
Rated 4.5 out of 5 stars
30 Ratings
Terms & Conditions

12 Customer Reviews

Rated 1 out of 5 stars
By Sonya on Dec 6, 2025

Still green

This product did nothing to clear the floating algae and De-green my water

This product did nothing to clear the floating algae and De-green my water

Rated 5 out of 5 stars
By Lydia on Jun 5, 2025

Works well

The man-made pond at my workplace was NASTY. I got elected to be the caretaker. I scooped out a bunch of algae and added this stuff as directed. The water is much

The man-made pond at my workplace was NASTY. I got elected to be the caretaker. I scooped out a bunch of algae and added this stuff as directed. The water is much nicer now. We can see the fish!!

Rated 5 out of 5 stars
By Jane on Jul 6, 2025

Tried a lot of algaecides.

This product is working amazing and better than algae prevention that used to work and doesn’t anymore

This product is working amazing and better than algae prevention that used to work and doesn’t anymore

Rated 5 out of 5 stars
By Starrlet on Jul 11, 2025

I seems to work

bought small bottle for my small pond

bought small bottle for my small pond

Rated 5 out of 5 stars
By Alisha on Oct 17, 2024

Really Works!

My pond was green despite me cleaning it weekly. I looked for a product that was all natural because most of the others had a bunch of chemicals in them. This one

My pond was green despite me cleaning it weekly. I looked for a product that was all natural because most of the others had a bunch of chemicals in them. This one had the best ingredients. It actually works! My pond water cleared up within the first 2 doses, you can see all the way to the bottom and all of the fishes are happy!!

Rated 5 out of 5 stars
By James on Sep 8, 2025

Good

It was ok.

It was ok.

Rated 5 out of 5 stars
By Sarah on May 8, 2025

speedy delivery

great price great service

great price great service

Rated 1 out of 5 stars
By Buzz on Aug 21, 2022

Product expired 5/2022

I have used this product before with success but algae is starting to grow after several applications

I have used this product before with success but algae is starting to grow after several applications

Rated 5 out of 5 stars
By katies on Jul 11, 2020

working good so far

we had a terrible algae problem this year. our pond was always crystal clear. once you clean the algae off and this so far after about three weeks it has not come

we had a terrible algae problem this year. our pond was always crystal clear. once you clean the algae off and this so far after about three weeks it has not come back very happy

Rated 4 out of 5 stars
By Diane on Jun 28, 2020

API Pondcare Microbial Algae Clean Green Water Biological Inhibitor

This is the same algae cleaner we've been using for years. However, this one hasn't lived up to the same ones in the past years. It does ok.

This is the same algae cleaner we've been using for years. However, this one hasn't lived up to the same ones in the past years. It does ok.