---
product_id: 552467951
title: "Pondworx Pond Bacteria - Formulated for Water Features and Safe for Koi - 16 Ounces"
brand: "pond worx"
price: "€ 76.68"
currency: EUR
in_stock: false
reviews_count: 5
category: "Pond Worx"
url: https://www.desertcart.ie/products/552467951-pondworx-pond-bacteria-formulated-for-water-features-and-safe-koi
store_origin: IE
region: Ireland
---

# Instant sludge & muck action Safe for koi & aquatic life Concentrated bacteria formula Pondworx Pond Bacteria - Formulated for Water Features and Safe for Koi - 16 Ounces

**Brand:** pond worx
**Price:** € 76.68
**Availability:** ❌ Out of Stock

## Summary

> 🦠 Clear water, happy koi, zero compromises!

## Quick Answers

- **What is this?** Pondworx Pond Bacteria - Formulated for Water Features and Safe for Koi - 16 Ounces by pond worx
- **How much does it cost?** € 76.68 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/552467951-pondworx-pond-bacteria-formulated-for-water-features-and-safe-koi)

## Best For

- pond worx enthusiasts

## Why This Product

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

## Key Features

- • **Recreation Ready Fast:** Use your pond for fishing, swimming, or relaxing right after application—no downtime.
- • **Synergistic Pond Care:** Works seamlessly with other Pondworx products to maintain a balanced, thriving aquatic ecosystem.
- • **Rapid Ecosystem Rescue:** Starts breaking down muck and sludge immediately for a visibly cleaner pond.
- • **Koi & Wildlife Friendly:** Formulated to protect your fish, plants, and local wildlife—no harmful chemicals here.
- • **Versatile for Large & Small:** Perfect for large ponds, koi habitats, and ornamental water gardens alike.

## Overview

Pondworx Pond Bacteria is a powerful, concentrated liquid treatment designed to rapidly eliminate sludge and muck in ponds and water features. Safe for koi, plants, and wildlife, it restores water clarity and oxygen balance without interrupting recreational use. Ideal for large ponds and water gardens, it supports a healthy ecosystem when used alone or alongside other Pondworx products.

## Description

Ornamental water gardens and ponds are enclosed ecosystems, sometimes factors like fish load, uneaten fish food, organics such as leaves, sludge and unwanted debris may disrupt the balance. Leaves, grass clippings, algae, uneaten fish food, fish waste, and decaying plants all contribute to build-up of sludge which is not only unsightly, but unhealthy, as it consumes oxygen.

Review: My small koi pond was full of algae due to direct sunlight for more than 10 hours a day. Despite 2 UV lamps algae still cover 70% of the sides and base. 2 weeks after applying Pondworx the base and sides began to clear up to 40% and the aeration pumps also became more vigorous! Bought second bottle already!
Review: My garden has a very large natural pond which unfortunately had a problem with biofilm. I used the full container of PondWorx Pond Bacteria and the following day the pond was much improved; a couple of days on and the pond has greatly improved and the water is clear. I can actually see the fish again, which by the way are unharmed. I would definitely recommend and will continue to use periodically or should the pond have another problem with biofilm. Depending on the size of your pond it could become expensive, however this works.

## Features

- Once applied, Pondworx Bacteria will instantly get to work on muck and sludge
- This concentrated formulated is designed for large ponds but also works great in water gardens, koi ponds and other water features and will not harm vegetation, fish or wildlife.
- Treated bodies of water may be used for recreation, fishing, and other activities immediately after applying.
- Pondworx Products are designed to work in conjunction with each other to provide best results to promote and help maintain an ideal ecosystem for your body of water

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09B4HLCV8 |
| Best Sellers Rank | #88,160 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,544 in Water Treatments |
| Brand | Pond Worx |
| Generic Name | water treatment |
| Included Components | liquid |
| Item Form | Liquid |
| Item Weight | 453 g |
| Item model number | 60036 |
| Liquid Volume | 16 Fluid Ounces |
| Manufacturer | Energen |
| Net Quantity | 16.0 Grams |
| Package Dimensions | 19.99 x 5.99 x 5.51 cm; 453.59 g |
| UPC | 768980600367 |

## Product Details

- **Brand:** Pond Worx
- **Item Form:** Liquid
- **Item Weight:** 16 Ounces
- **Liquid Volume:** 16 Fluid Ounces
- **Manufacturer:** Energen

## Images

![Pondworx Pond Bacteria - Formulated for Water Features and Safe for Koi - 16 Ounces - Image 1](https://m.media-amazon.com/images/I/41v440ywoeL.jpg)
![Pondworx Pond Bacteria - Formulated for Water Features and Safe for Koi - 16 Ounces - Image 2](https://m.media-amazon.com/images/I/51+TxVdaUCL.jpg)
![Pondworx Pond Bacteria - Formulated for Water Features and Safe for Koi - 16 Ounces - Image 3](https://m.media-amazon.com/images/I/518TWEsd4JL.jpg)
![Pondworx Pond Bacteria - Formulated for Water Features and Safe for Koi - 16 Ounces - Image 4](https://m.media-amazon.com/images/I/51J-FFlMCML.jpg)
![Pondworx Pond Bacteria - Formulated for Water Features and Safe for Koi - 16 Ounces - Image 5](https://m.media-amazon.com/images/I/51KeoafVjPL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How much product do I need?**
A: One gallon of Pond Worx Pond Bacteria will treat one acre with an average depth of 4-6 feet deep.

**Q: Is Pond Bacteria safe for fish?**
A: Yes! When used as directed, Pond Worx Pond Bacteria does not pose risk to fish, vegetation, people, pets, or other various wildlife.

**Q: How long before I see results?**
A: Though Pond Bacteria starts working immediately, it can take up to 90 days for measurable results, depending on the extent of the buildup.

**Q: When should this product be applied?**
A: Pond Bacteria works best in warmer waters. We recommend starting applications in the spring when water temperatures are at least 50˚F or above.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***Y on 7 October 2021*

My small koi pond was full of algae due to direct sunlight for more than 10 hours a day. Despite 2 UV lamps algae still cover 70% of the sides and base. 2 weeks after applying Pondworx the base and sides began to clear up to 40% and the aeration pumps also became more vigorous! Bought second bottle already!

### ⭐⭐⭐⭐⭐ Review
*by A***E on 24 September 2021*

My garden has a very large natural pond which unfortunately had a problem with biofilm. I used the full container of PondWorx Pond Bacteria and the following day the pond was much improved; a couple of days on and the pond has greatly improved and the water is clear. I can actually see the fish again, which by the way are unharmed. I would definitely recommend and will continue to use periodically or should the pond have another problem with biofilm. Depending on the size of your pond it could become expensive, however this works.

### ⭐⭐⭐⭐⭐ Review
*by C***S on 28 September 2025*

Pros: This really works on clearing my 1/3 acre pond. It went from brownish water to crystal clear in about two weeks. No negative impact on the pond in any way. I used a full jug since the pond is about 13 ft at the deepest and averages 6 ft. Cons: The water will start to revert back if you don’t apply again every 2 months.

## Frequently Bought Together

- Pondworx Pond Bacteria - Concentrated & Formulated for Water Features - Safe for Koi - 16 Ounces & Treats up to 2,500 gallons of Water
- API POND ACCU-CLEAR Pond Water Clarifier 16-Ounce Bottle
- API POND CHLORINE & HEAVY METAL NEUTRALIZER Pond Water Neutralizer 16-Ounce Bottle

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-07*