---
product_id: 26731342
title: "Pond Matrix, 20 L / 5.3 gal."
brand: "water garden oasis"
price: "S$503"
currency: SGD
in_stock: true
reviews_count: 8
url: https://www.desertcart.sg/products/26731342-pond-matrix-20-l-5-3-gal
store_origin: SG
region: Singapore
---

# High porosity Fish-friendly 20L capacity Pond Matrix, 20 L / 5.3 gal.

**Brand:** water garden oasis
**Price:** S$503
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into a cleaner pond experience!

## Quick Answers

- **What is this?** Pond Matrix, 20 L / 5.3 gal. by water garden oasis
- **How much does it cost?** S$503 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/26731342-pond-matrix-20-l-5-3-gal)

## Best For

- water garden oasis enthusiasts

## Why This Product

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

## Key Features

- • **Generous Coverage:** 1 Liter treats up to 100 US gallons—perfect for expansive ponds.
- • **Transform Your Pond:** Elevate your aquatic ecosystem with our high-capacity biofiltration substrate.
- • **Clean Soil Alternative:** Cultivate aquatic plants without the mess of muddy soils.
- • **Allergen-Free Assurance:** Enjoy peace of mind with our allergen-free formulation.
- • **Efficient Biofiltration:** Say goodbye to ammonia, nitrate, and nitrite—hello to a thriving aquatic environment!

## Overview

Pond Matrix is a high-capacity biofiltration substrate designed for decorative ponds, effectively removing harmful substances while promoting a healthy environment for fish and aquatic plants. With a generous treatment capacity and allergen-free formulation, it’s the perfect solution for pond enthusiasts looking to enhance their aquatic landscapes.

## Description

Pond Matrix, 20 L / 5.3 gal.

## Features

- High capacity biofiltration aquatic plant substrate
- High porosity product designed to provide exceptionally efficient biofiltration
- Removes ammonia, nitrate, and nitrite from decorative ponds thereby promoting a healthy environment for both fish and aquatic plants
- Also serves as clean soil replacement allowing the culture of aquatic plants without the use of muddy soils
- 1 Liter treats 100 US gallons

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 22.42 Pounds |
| Liquid Volume | 20 Liters |
| Target Species | Fish |
| Item Form | Granules |
| Allergen Information | Allergen-Free |

## Images

![Pond Matrix, 20 L / 5.3 gal. - Image 1](https://m.media-amazon.com/images/I/715EVBt-NOL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great value, top shelf product.
  

*by M***A on Reviewed in the United States on November 3, 2013*

Awesome stuff, you can tell just by looking and holding the rocks that they are incredibly porous. I built my own custom sump and threw a whole bucket of this stuff in it, I can't even imagine how many bio-balls I would need to get the same surface area. For bio-filtration I can't think of anything that can out do this stuff. I'm pumping 2000 GPH through my sump and the water flow does not seem to be affected. Great value for 5 lbs compared to the prices for the smaller containers.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    This is Seachem Matrix in large
  

*by P***N on Reviewed in the United States on March 29, 2021*

I have a 300gal aquarium and a 95gal sump.I love the regular Matrix but I had an issue in may setup.3600gal of water is flowing from top trough the stack of 8l of regular Matrix.The bacteria will produce so much gas in one hour to hinder the flow though the stack.Water flows beside the stack and it will limits the flow.This stuff is bigger then the biggest junk in the regular Matrix.This fixes my flow issue even with 20l in the stack.I'm very happy.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works amazing
  

*by M***K on Reviewed in the United States on July 9, 2019*

This is some of the best stuff out there.  You still have to cycle your tank just like with any other product but once you do this stuff is golden and lasts forever.

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**Shop now:** [https://www.desertcart.sg/products/26731342-pond-matrix-20-l-5-3-gal](https://www.desertcart.sg/products/26731342-pond-matrix-20-l-5-3-gal)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-03*