API Pond-Zyme Sludge Destroyer Pond Sludge Remover

By API
Rated 4.1875 out of 5 stars
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API Pond-Zyme Sludge Destroyer Pond Sludge Remover, 8-oz jar slide 1 of 9
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API Pond-Zyme Sludge Destroyer Pond Sludge Remover, 8-oz jar slide 1 of 9
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$18.26Chewy Price
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$26.59Chewy Price
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About This Item

  • All-natural additive uses specially selected bacterial strains to break down fish waste and dead algae.
  • Breaks down and digests leaves and grass clippings that can fall into your pond.
  • Removes and clears cloudy water, sludge build-up and debris that clogs pumps and filters.
  • Designed for ornamental pond use and comes in multiple sizes to best serve your pond needs.
  • Safe for all pond fish, plants and wildlife, and reduces pond maintenance.
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Fish TypeKoi & Pond FishKoi & Pond FishKoi & Pond FishKoi & Pond FishKoi & Pond Fish
Aquarium TypePondPondPondPondPond
Top IngredientsN/AN/AN/AN/A

Questions & Answers

13 Customer Questions


Should we turn off the pond pump to give this product time to sink before the skimmer pulls it in? Ty
Answer by ChewyMar 30, 2018
The pump should be left on when using this product.

How many gallons does the 16oz bottle treat? Our pond is approximately 650 gallons.
Answer by ChewyMar 23, 2019
The 8 ounce container treats 8,000 gallons and the 16 ounce container treats 16,000 gallons.

Can I swim in pond once I use this product
Answer by ChewyApr 05, 2022
This treatment is designed for ornamental pond use only.

is this turtle safe?
Answer by ChewyJun 07, 2020
This sludge remover is safe for all pond fish, plants and wildlife.


ReviewsWrite a Review

4.2
Rated 4.1875 out of 5 stars
16 Reviews
81%
Would recommend to a friend
1
12.5
13%
2
6.25
6%
3
0
0%
4
12.5
13%
5
68.75
69%

16 Customer Reviews



Rated 2 out of 5 stars
By Susan on Mar 9, 2022

Not what I purchased

Product form states tablet which is what I wanted but this is powder. Decided to try it anyway and so far it is just floating on top of the water 2 days after I put it in.


Rated 5 out of 5 stars
By Cleat on Feb 12, 2022

Long time user.

I have a medium sized KOI pond with various numbers of fish. I have used POND-ZYME for years and will not use another product. It does the job.


Rated 5 out of 5 stars
By Pond on Aug 12, 2021

Pea soup Pond

I have had a pond for 12 years very hard to keep clear I figure I try this product one container to see if it works and I found that after two weeks it’s GREAT so order two more for stock


Rated 4 out of 5 stars
By Nickname on Apr 10, 2021

Helps With Spring Start Up

I use Pond-Zyme Sludge Destroyer in the Spring when the weather warms up. It helps to rid the pond of the gunk that builds up over the winter. The only drawback is that you will need to use it weekly until you have achieved the desired effect. I suppose some folks continue use. I stop once my pond is clear again.


Rated 5 out of 5 stars
By Koiqueen on Jul 19, 2020

Dirty Water

I have a very large pond w/two waterfalls and an over population of over sized fish. I use this every time I clean the filter and it really breaks down the waste and helps keep the water clean. I have to use more than the directions suggest to get the necessary results. And I don't have to travel across town to a pet shop to get it.


Rated 4 out of 5 stars
By Henriludo on Jun 21, 2020

Better with other product

Do not expect this product to clear the pond water by itself. If sprinkled on the water, it ends up in the filter eventually. It seems that sprinkling the powder in the cascade helps mixing with the water. It works better with an algaecide, but in summer, even with the enzymes and beneficial bacteria, UV light and copper ions, the sludge and algae can only be controlled. Still somewhat helpful.


Rated 5 out of 5 stars
By catlover on Jul 15, 2020

Be patient

At first I wasn't sure if it would work, but near the end of the first two weeks, the water was almost crystal clear!


Rated 1 out of 5 stars
By Gracie on Jun 22, 2020

Unhappy with product

Used it for two weeks and pond water is still dilthy. Will use up product and if no improvement will not use again.


Rated 1 out of 5 stars
By Swest1993 on Mar 24, 2020

Do not use

I used this product in my fish pond and 3 of my two year old fish died. I used less than the recommended amount. There were no other chemicals in the pond. This products is not safe for fish or the dead bullfrog that had lived in the pond. I emptied the 200 gallon pond. Hopefully my remaining fish will live. Not happy.


Rated 5 out of 5 stars
By Pamscats on Oct 20, 2019

Works well

I have a small pond and the sludge from summer has built up. This seems to be breaking it down.