---
product_id: 387922946
title: "Pond Worx Bacteria - Formulated for Large s, Water Features and Safe for Koi - Gallon"
brand: "pond worx"
price: "1040 zł"
currency: PLN
in_stock: true
reviews_count: 5
category: "Pond Worx"
url: https://www.desertcart.pl/products/387922946-pond-worx-bacteria-formulated-for-large-s-water-features-safe
store_origin: PL
region: Poland
---

# Safe for fish, plants & wildlife Concentrated bacteria formula Immediate activation on application Pond Worx Bacteria - Formulated for Large s, Water Features and Safe for Koi - Gallon

**Brand:** pond worx
**Price:** 1040 zł
**Availability:** ✅ In Stock

## Summary

> 🦠 Clear your pond, clear your mind — the ultimate bacteria boost for pristine waters!

## Quick Answers

- **What is this?** Pond Worx Bacteria - Formulated for Large s, Water Features and Safe for Koi - Gallon by pond worx
- **How much does it cost?** 1040 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/387922946-pond-worx-bacteria-formulated-for-large-s-water-features-safe)

## 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

- • **Large Pond Power:** Formulated specifically for large ponds, water gardens, and koi habitats.
- • **Synergistic System:** Works best when combined with other Pondworx products for a balanced water column.
- • **Eco-Friendly & Safe:** Non-toxic to fish, koi, plants, and wildlife when used as directed.
- • **Effortless Application:** Simply pour along the shoreline—no complicated setup required.
- • **Instant Ecosystem Rescue:** Begins breaking down sludge and muck immediately for crystal-clear water.

## Overview

Pond Worx Bacteria is a concentrated liquid formula designed to rapidly break down sludge, algae, and organic debris in large ponds, koi ponds, and water features. Safe for fish, plants, and wildlife, it activates immediately upon application and supports a healthy aquatic ecosystem. Easy to use with no downtime for recreational use, it’s the go-to solution for maintaining crystal-clear, balanced water environments.

## Description

Ornamental water gardens and ponds are enclosed ecosystems, sometimes factors like fish load, uneaten fish food, 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. Pondworx activates immediately and will begin to break down muck and sludge into an odorless gas that will simply escape out of the water column unnoticed.

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 will instantly get to work
- This concentrated formulated is designed for large ponds but also works great in water gardens, koi ponds and other water features
- 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 a healthy water column and maintain an ideal ecosystem for your body of water
- Easy to Use: Just pour directly from the container in several spots along the shoreline.Will not harm vegetation, fish or wildlife when used as directed

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01H7G6UG2 |
| Batteries Included | No |
| Best Sellers Rank | #54,864 in Pet Supplies ( See Top 100 in Pet Supplies ) #92 in Pond Care & Water Treatment |
| Customer Reviews | 4.2 4.2 out of 5 stars (3,513) |
| Date First Available | 1 August 2016 |
| Item Form | Liquid |
| Item Weight | 3.81 Kilograms |
| Item model number | 46 |
| Product Dimensions | 18.36 x 11.66 x 28.7 cm; 3.81 kg |
| Size | 3.79 liters (3630 g) |
| batteries required | No |

## Product Details

- **Brand:** Pond Worx
- **Item form:** Liquid
- **Item weight:** 8.39 Pounds
- **Liquid volume:** 128 Fluid Ounces
- **Manufacturer:** Pond Worx

## Images

![Pond Worx Bacteria - Formulated for Large s, Water Features and Safe for Koi - Gallon - Image 1](https://m.media-amazon.com/images/I/81wbCHuzsDL.jpg)
![Pond Worx Bacteria - Formulated for Large s, Water Features and Safe for Koi - Gallon - Image 2](https://m.media-amazon.com/images/I/814EQD8PK9L.jpg)
![Pond Worx Bacteria - Formulated for Large s, Water Features and Safe for Koi - Gallon - Image 3](https://m.media-amazon.com/images/I/91yyYB8CSCL.jpg)
![Pond Worx Bacteria - Formulated for Large s, Water Features and Safe for Koi - Gallon - Image 4](https://m.media-amazon.com/images/I/81jJzP-yCKL.jpg)
![Pond Worx Bacteria - Formulated for Large s, Water Features and Safe for Koi - Gallon - Image 5](https://m.media-amazon.com/images/I/81abjk0P6OL.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 R***D on 4 December 2025*

This bacteria works great. I start using it in the spring and before long, maybe a couple of months all the sludge in the bottom of the pond is just gone. If you want to accelerate the process, I noticed if you add an air hose to the area it works even faster

## Frequently Bought Together

- PondWorx Pond Bacteria - Formulated for Large Ponds, Water Features and Safe for Koi - Gallon
- Blue Lake and Pond Dye - One Gallon of Professional Lake & Pond Dye - Treats Up to 1 Acre - Royal Blue Color - Safe for Fish, Wildlife, Pets & Children
- Pondworx Water Clear - Concentrated Formulation Improves Water Clarity and Quality, Helps Clear Cloudy Water, Safe for Fish, Pets, and Plant - 1 Gallon

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-16*