API Pond Ecofix Sludge Destroyer Pond Water Clarifier & Sludge Remover

Rated 4.2727 out of 5 stars


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$77.57Chewy Price
$107.98Chewy Price
$73.69Autoship Price
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Frequently Bought Together

API Pond Algaefix Algae Control Solution, 1-gal bottle
Rated 4.3168 out of 5 stars
$63.64Chewy Price
API Pond Master Test Kit, 500 count
Rated 4.4667 out of 5 stars
$33.36Chewy Price

Save 35% on Autoship

Total Price: $174.57

About This Item


  • Helps eliminate pond sludge by breaking down fish waste and dead algae.
  • Digests leaves and grass clippings that can fall into your pond from your yard.
  • The active ingredient is 100% natural because your finned friends deserve nothing but the best.
  • Helps reduce overall maintenance for an easy and clean pond.
  • Designed for use in ornamental ponds and fountains.

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Questions & Answers

11 Customer Questions

Is it safe for adults to swim in ponds after these chemicals have been applied/used or is there a time frame before it is same to swim in the pond after application?
Answer by ChewyApr 03, 2018
As long as the correct dosage is used for the volume of water, it's safe.

Can I use Ecofix Sludge Destroyer at the same time as I use Simply Clear?
Answer by ChewyFeb 14, 2018
Ecofix Sludge Destroyer can be used at the same time as Simply Clear.

how large a pond will the gallon size treat
Answer by ChewyJun 15, 2021
The 16-ounce bottle treats up to 4,000 U.S. Gallons, the 64-ounce bottle treats up to 16,000 U.S. Gallons, and the 1-gallon bottle treats up to 22,000 U.S. Gallons.

Will it hurt dogs or cats that may drink out of the pond
Answer by ChewyAug 02, 2020
API Pond Ecofix Sludge Destroyer Pond Water Clarifier & Sludge Remover can safely be used in a pond environment and will not harm mammals if they drink from or swim in treated water.

ReviewsWrite a Review

Rated 4.2727 out of 5 stars
11 Ratings
Would recommend to a friend

11 Customer Reviews

Rated 5 out of 5 stars
By Bella on Nov 7, 2022

Great product

Helps remove excess sludge and will definitely purchase again

Rated 5 out of 5 stars
By Amy1 on May 9, 2022


If I hadn’t seen it I wouldn’t have believed it. Our pond is 125 gallons. The water was green. You couldn’t see the fish other than a slight orange glow as they came up to eat. After one application and one week, the water is crystal clear. I have never used a product this effective, but I’ll certainly never be without it. Amazing.

Rated 5 out of 5 stars
By snorky on Jun 20, 2022

pond products

The service was excellent and the delivery time was the fastest ever. The prices were more than reasonable. I will continue to use them.

Rated 5 out of 5 stars
By Peanut on Sep 21, 2021

Worked great

Worked had great directions and what it worked with

Rated 5 out of 5 stars
By Nikki on Apr 2, 2021

Great stuff

Shipped quick! And Helped my outside pond tremendously.

Rated 5 out of 5 stars
By DebHad on Nov 23, 2020

Sludge Destroyer

I have been using this product for over two years, and it works great. I keep my red eared slider in a 50 gallon Rubber Maid tank.

Rated 1 out of 5 stars
By Tcst on Jul 1, 2020

i wanted it to work

it doesnt seem to be working....so im also using the simply clear, they just arent clearing the water, i think i'll have to use the agaefix, i didnt want too, because it isnt as safe for animals...

Rated 1 out of 5 stars
By Duke on May 9, 2020

no improvement whatsoever

worse now than before, maybe after I cleaned out the pond I expected it to be clear water

Rated 5 out of 5 stars
By Bandit on Oct 9, 2019

Happy fish

Works great use it all the time. Keeps water clear and free of agae and have healthy fish Happy fish

Rated 5 out of 5 stars
By Frenchie on Dec 21, 2018

Great stuff

I shut down my pond due to no pump, and extreme alga. Decided to treat the pond anyway, and I was amazed the little amount I put in that it cleared right up. Will be glad to start it up in the spring, and put my new pump in, and do a complete dosage on the pond.