---
product_id: 294554128
title: "API Pond-Zyme Sludge Destroyer Pond Water Cleaner with Barley, Safe for Pets, 227 G Container"
brand: "api"
price: "€ 78.06"
currency: EUR
in_stock: true
reviews_count: 6
category: "Api"
url: https://www.desertcart.be/products/294554128-api-pond-zyme-sludge-destroyer-pond-water-cleaner-with-barley
store_origin: BE
region: Belgium
---

# Safe for all ornamental fish Natural bacteria + barley formula Breaks down organic sludge fast API Pond-Zyme Sludge Destroyer Pond Water Cleaner with Barley, Safe for Pets, 227 G Container

**Brand:** api
**Price:** € 78.06
**Availability:** ✅ In Stock

## Summary

> ♻️ Transform your pond into a crystal-clear sanctuary—naturally!

## Quick Answers

- **What is this?** API Pond-Zyme Sludge Destroyer Pond Water Cleaner with Barley, Safe for Pets, 227 G Container by api
- **How much does it cost?** € 78.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/294554128-api-pond-zyme-sludge-destroyer-pond-water-cleaner-with-barley)

## Best For

- api enthusiasts

## Why This Product

- Trusted api brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Legacy Brand:** Backed by 50+ years of API innovation, ensuring reliable, research-driven pond care solutions.
- • **Fish-Friendly Formula:** 100% safe for koi, goldfish, catfish, and other ornamental species—because your pets deserve the best.
- • **Seasonal Smart Dosing:** Optimized twice-weekly spring and fall treatments plus biweekly maintenance for year-round pristine water quality.
- • **Low-Maintenance Luxury:** Reduces pond cleaning frequency so you can spend more time enjoying your aquatic oasis, less time scrubbing.
- • **Eco-Powered Pond Clarity:** Harnesses natural bacteria and barley to dissolve sludge and organic waste, keeping your pond crystal clear.

## Overview

API Pond-Zyme Sludge Destroyer is a 227g pond water treatment that uses natural bacteria and barley to break down fish waste, algae, and organic sludge. Safe for ornamental fish and both fresh and saltwater ponds, it reduces maintenance by improving water quality and preventing pump and filter clogs. Ideal for seasonal and regular dosing, this product is part of API’s trusted 50-year legacy in aquatic care.

## Description

API POND-ZYME SLUDGE DESTROYER Pond Water Cleaner with Barley reduces build-up of fish waste and consumes pond sludge, which is typically a build-up of organic matter that degrades water quality and clogs pumps and filters. POND-ZYME SLUDGE DESTROYER uses natural bacteria and barley as active ingredients to break down algae and fish waste, digest leaves and grass clippings, and reduce overall pond maintenance for the season. This product is exclusively for use in ornamental ponds. Use as directed, dosing twice a week for two weeks at the beginning of the spring start-up season and at the end of the season, and dosing once every two weeks for regular maintenance. With API POND products, it’s easy to keep a beautiful pond. For over 50 years, API has been creating innovative, research-driven solutions that make it easier to care for your pond. API POND Pond Treatment Supplies are designed to work in conjunction with each other to provide best results to control algae, promote healthy bacterial growth and help control and cure fish diseases and conditions such as ich and fin rot. They work to provide a safe, hospitable environment for fish such as koi, catfish, perch, goldfish and more. With API, you can spend more time admiring your fish, and less time scrubbing your pond. Make sure to use all products as directed in order to ensure the best results.

Review: Totally ineffective product that makes false claims. - This product just did not deliver what it promised i.e. a clean pond. It is totally ineffective and waste of money. All claims made for the product are false. Extremely unhappy and feel cheated of my money. Would never buy it ever again.
Review: arrived promptly and a breeze to use - Very happy with this exceptionally easy to use product. Very happy that pond is starting to look better

## Features

- 100% dedicated to performance and clean environment
- Product tested and safe for salt or fresh water setups
- Cleaner ponds and tanks equal longer fish and aquatic life

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000YJ45S0 |
| Best Sellers Rank | #21,691 in Pet Supplies ( See Top 100 in Pet Supplies ) #459 in Water Treatments |
| Brand | API |
| Brand Name | API |
| Customer Reviews | 4.1 out of 5 stars 668 Reviews |
| Global Trade Identification Number | 00317163011461 |
| Item Form | Liquid |
| Item Weight | 311.85 Grams |
| Manufacturer | API |
| Manufacturer Part Number | 146 |
| Model Number | 146 |
| Net Quantity | 2000.0 Milliliters |
| Number Of Items | 1 |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 317163011461 |
| Unit Count | 2000.0 Milliliters |

## Product Details

- **Brand:** API
- **Item Form:** Liquid
- **Item Weight:** 311.85 Grams
- **Manufacturer:** API
- **Net Quantity:** 2000.0 Milliliters

## Images

![API Pond-Zyme Sludge Destroyer Pond Water Cleaner with Barley, Safe for Pets, 227 G Container - Image 1](https://m.media-amazon.com/images/I/81ppCTuy9TL.jpg)
![API Pond-Zyme Sludge Destroyer Pond Water Cleaner with Barley, Safe for Pets, 227 G Container - Image 2](https://m.media-amazon.com/images/I/91QVOW8ZmTL.jpg)
![API Pond-Zyme Sludge Destroyer Pond Water Cleaner with Barley, Safe for Pets, 227 G Container - Image 3](https://m.media-amazon.com/images/I/A17vjkQ9+9L.jpg)
![API Pond-Zyme Sludge Destroyer Pond Water Cleaner with Barley, Safe for Pets, 227 G Container - Image 4](https://m.media-amazon.com/images/I/A1DN2LBEZTL.jpg)
![API Pond-Zyme Sludge Destroyer Pond Water Cleaner with Barley, Safe for Pets, 227 G Container - Image 5](https://m.media-amazon.com/images/I/710PtBqXxxL.jpg)

## Questions & Answers

**Q: How much do I need to put in a 5000 gallon fish pond?  The new fish pond is used for the first time.  thanks**
A: Specific directions are stated on the bottle for start ups and maintenance. Do not over treat.

**Q: Is the container supposed to be sealed? I just recieved mine and there was no seal and powder was spilled inside the envelope**
A: Yes, it should have a seal, but it occasionally gets stuck to the lid such that it comes off with the lid when you remove it.

**Q: Can i use this in a plastic dog pool?**
A: Yes, you may use this in a plastic pool.

**Q: Can this pond-zyme sludge destroyer be used with a uv light sterilizer or will the uv light destroy the bacteria?**
A: Yes, this product can be used with a UV light. A standard UV light used in filters for ponds will not destroy or inhibit the bacteria.

## Customer Reviews

### ⭐ Totally ineffective product that makes false claims.
*by V***R on 8 February 2022*

This product just did not deliver what it promised i.e. a clean pond. It is totally ineffective and waste of money. All claims made for the product are false. Extremely unhappy and feel cheated of my money. Would never buy it ever again.

### ⭐⭐⭐⭐⭐ arrived promptly and a breeze to use
*by D***E on 13 December 2023*

Very happy with this exceptionally easy to use product. Very happy that pond is starting to look better

### ⭐⭐⭐⭐⭐ Great product that works
*by T***Y on 1 November 2025*

I have a small outdoor pond with frogs living in there. The water was dirty and smelly. I tried a few natural things without chemicals but nothing worked until I used this. Now after a couple of weeks I can see the bottom of the pond and the smell has gone.

## Frequently Bought Together

- API POND-ZYME SLUDGE DESTROYER Pond Cleaner With Natural Pond Bacteria And Barley, 8oz container (146)
- API POND ALGAEFIX Algae Control 32-Ounce Bottle, FISHAQUARI (169G)
- API POND ACCU-CLEAR Pond Water Clarifier 16-Ounce Bottle

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-10-20*