---
product_id: 372931709
title: "Pond Worx Bacteria - Concentrated & Formulated for Large s, Water Features - Safe for Koi - 32ounes & Treats up to a Quarter Acre"
brand: "pond worx"
price: "฿4089"
currency: THB
in_stock: true
reviews_count: 5
category: "Pond Worx"
url: https://www.desertcart.co.th/products/372931709-pond-worx-bacteria-concentrated-and-formulated-for-large-s-water
store_origin: TH
region: Thailand
---

# Non-toxic, protects vegetation Safe for koi and aquatic life Concentrated formula for large ponds Pond Worx Bacteria - Concentrated & Formulated for Large s, Water Features - Safe for Koi - 32ounes & Treats up to a Quarter Acre

**Brand:** pond worx
**Price:** ฿4089
**Availability:** ✅ In Stock

## Summary

> 🌊 Clear your pond, clear your mind—Pond Worx means pristine waters, no compromises.

## Quick Answers

- **What is this?** Pond Worx Bacteria - Concentrated & Formulated for Large s, Water Features - Safe for Koi - 32ounes & Treats up to a Quarter Acre by pond worx
- **How much does it cost?** ฿4089 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/372931709-pond-worx-bacteria-concentrated-and-formulated-for-large-s-water)

## 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

- • **Versatile Use:** Perfect for large ponds, water gardens, koi ponds, and other water features—one solution fits all.
- • **Instant Action:** Begins breaking down muck and sludge immediately for visibly clearer water in days.
- • **Recreation Ready:** Safe for swimming, fishing, and wildlife activities immediately after application—no downtime.
- • **Eco-Friendly & Safe:** Formulated to protect koi, fish, plants, and wildlife—balance your pond’s ecosystem worry-free.
- • **Powerful Concentration:** Treats up to a quarter acre with just 32oz—maximum impact, minimal effort.

## Overview

Pond Worx Bacteria is a concentrated liquid treatment designed for large ponds and water features, safely breaking down sludge and muck without harming koi, fish, or plants. Treating up to a quarter acre per 32oz bottle, it restores water clarity quickly and supports a healthy aquatic ecosystem, allowing immediate recreational use post-application.

## 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 | B09B4TCNH4 |
| Allergen Information | Allergen-Free |
| Batteries Included | No |
| Best Sellers Rank | #54,165 in Pet Supplies ( See Top 100 in Pet Supplies ) #86 in Pond Care & Water Treatment |
| Customer Reviews | 4.2 4.2 out of 5 stars (3,503) |
| Date First Available | 26 August 2021 |
| Item Form | Liquid |
| Item Weight | 80 g |
| Item model number | 60037 |
| Package Dimensions | 19.1 x 13 x 5.31 cm; 80 g |
| Pet Life Stage | Adult |
| Size | 1 Quart (32oz) |
| Specific Uses | water treatment |
| batteries required | No |

## Product Details

- **Brand:** Pond Worx
- **Item form:** Liquid
- **Item weight:** 80 Grams
- **Liquid volume:** 32 Fluid Ounces
- **Manufacturer:** Pond Worx

## Images

![Pond Worx Bacteria - Concentrated & Formulated for Large s, Water Features - Safe for Koi - 32ounes & Treats up to a Quarter Acre - Image 1](https://m.media-amazon.com/images/I/61x1ep6fJZL.jpg)

## 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 - Concentrated & Formulated for Large Ponds, Water Features - Safe for Koi - 32ounes & Treats up to a Quarter Acre Pond
- API POND ALGAEFIX Algae Control 32-Ounce Bottle, FISHAQUARI (169G)
- API POND ACCU-CLEAR Pond Water Clarifier 32-Ounce Bottle

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-25*