---
product_id: 67903025
title: "500ml"
brand: "blagdon"
price: "₹ 5753"
currency: INR
in_stock: false
reviews_count: 13
category: "Blagdon"
url: https://www.desertcart.in/products/67903025-500ml
store_origin: IN
region: India
---

# Treats 4,546L pond water Easy-dose chamber for precise use Effective above 10°C water temp 500ml

**Brand:** blagdon
**Price:** ₹ 5753
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Clear your pond, not your conscience!

## Quick Answers

- **What is this?** 500ml by blagdon
- **How much does it cost?** ₹ 5753 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/67903025-500ml)

## Best For

- blagdon enthusiasts

## Why This Product

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

## Key Features

- • **Broad Coverage Capacity:** One 500ml bottle treats up to 4,546 litres of pond water—big pond, no problem
- • **Safe for Your Ecosystem:** Harmless to pond fish, plants, filters, and wildlife—eco-friendly peace of mind
- • **Powerful Natural Control:** Harnesses beneficial bacteria to starve duckweed without chemicals
- • **Optimized for Seasonal Use:** Works best when water temperature is 10°C or higher—perfect for spring and summer pond care
- • **Precision Dosing Made Simple:** Built-in dosage chamber ensures no guesswork, no overdosing

## Overview

Blagdon Pond Duckweed Buster is a 500ml liquid treatment that uses natural bacteria to efficiently control duckweed by depriving it of nutrients. Safe for all pond fish, plants, and wildlife, it treats up to 4,546 litres of water and features an easy-to-use dosage chamber. Most effective when pond temperatures exceed 10°C, it offers an eco-friendly solution for maintaining a clear, healthy pond environment.

## Description

Free delivery and returns on eligible orders. Buy Blagdon Pond Duckweed Buster, Controls Duckweed, Safe and Natural, 500ml, Treats 4,546 Litres of Pond Water at desertcart UK.

Review: Works if you use it as instructed - So duckweed is an absolute pain and just seems to multiply no matter what. Thought I’d try this and it really works if you use it properly. As others have pointed out, that means getting rid of as much duck weed as possible (I certainly got most of it, but not all the stuff buried in the pond plants). Yes, that’s a pain to do with a net and bucket, but essential. Despite the on-pack suggestion to repeat after 7 days, my first dose has left the pond completely free of the duckweed after 3 weeks, so for once I’m impressed with a Blagdon product.
Review: Didn’t work for me - Doesn’t work!!

## Features

- Use biocides safely. Always read the label and product information before use.
- A natural bacteria that controls duckweed efficiently by starving the plant of essential nutrients
- Harmless to pond filters and all species of pond fish and plants and water using wildlife
- Easy to use dosage chamber on top of bottle makes it simple to measure the correct dose for your pond
- Follow instructions on the back of pack for dosing requirements for your pond. This product cannot be overdosed
- This product is most effective when the pond water temperature is 10°C or higher, use regularly until the duckweed has cleared

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003EH3ZDK |
| Best Sellers Rank | 8,738 in Garden ( See Top 100 in Garden ) 54 in Water Garden & Pond Treatment |
| Brand Name | Blagdon |
| Country Of Origin | United Kingdom |
| Customer Reviews | 3.3 3.3 out of 5 stars (630) |
| Global Trade Identification Number | 00755349027651 |
| Included Components | 1 x Duckweed Buster |
| Item Form | Liquid |
| Item Type Name | Pond Duckweed remover |
| Item Weight | 557.92 Grams |
| Liquid Volume | 500 Millilitres |
| Manufacturer | Interpet Ltd |
| Manufacturer Part Number | 2765 |
| Model Number | BD2765 |
| Target Species | Insects |
| UPC | 755349027651 705235858364 |
| Unit Count | 1 count |

## Product Details

- **Brand:** Blagdon
- **Item form:** Liquid
- **Item weight:** 557.92 Grams
- **Liquid volume:** 500 Millilitres
- **Manufacturer:** Interpet Ltd

## Images

![500ml - Image 1](https://m.media-amazon.com/images/I/61HLjTU1+QL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works if you use it as instructed
*by C***. on 12 June 2025*

So duckweed is an absolute pain and just seems to multiply no matter what. Thought I’d try this and it really works if you use it properly. As others have pointed out, that means getting rid of as much duck weed as possible (I certainly got most of it, but not all the stuff buried in the pond plants). Yes, that’s a pain to do with a net and bucket, but essential. Despite the on-pack suggestion to repeat after 7 days, my first dose has left the pond completely free of the duckweed after 3 weeks, so for once I’m impressed with a Blagdon product.

### ⭐⭐⭐⭐ Didn’t work for me
*by B***N on 13 September 2025*

Doesn’t work!!

### ⭐⭐⭐ Didn’t clear it fully
*by L***. on 25 August 2025*

Got this to clear duckweed but it’s not completely gone looks like I’m going to have to buy something else

## Frequently Bought Together

- Blagdon Pond Duckweed Buster, Controls Duckweed, Safe and Natural, 500ml, Treats 4,546 Litres of Pond Water
- Blagdon Pond Sludge Buster, Digests Harmful Organic Waste, Introduces Good Bacteria, Keeps Pond Clean, 4 x 9g Sachets, Each Sachet Treats 2,273 Litres
- Blagdon Clear Pond Water Treatment, 1 Litre, Clears Dirty Green or Brown Cloudy Water Quickly, Natural, Wildlife Safe, Harmless to Fish and Filter Bacteria, 1L, Treats 20,000 Litres of Water

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**Shop now:** [https://www.desertcart.in/products/67903025-500ml](https://www.desertcart.in/products/67903025-500ml)

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*Product available on Desertcart India*
*Store origin: IN*
*Last updated: 2026-05-19*