---
product_id: 561389551
title: "FLUVAL Bio Stratum, 2 Kg / 4.4 lb"
brand: "fluval"
price: "HK$476"
currency: HKD
in_stock: true
reviews_count: 8
category: "Fluval"
url: https://www.desertcart.hk/products/561389551-fluval-bio-stratum-2-kg-4-4-lb
store_origin: HK
region: Hong Kong
---

# 100% natural volcanic soil 1mm porous granules for delicate root growth Infused with dormant nitrifying bacteria FLUVAL Bio Stratum, 2 Kg / 4.4 lb

**Brand:** fluval
**Price:** HK$476
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your aquarium’s ecosystem with nature’s volcanic power!

## Quick Answers

- **What is this?** FLUVAL Bio Stratum, 2 Kg / 4.4 lb by fluval
- **How much does it cost?** HK$476 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/561389551-fluval-bio-stratum-2-kg-4-4-lb)

## Best For

- fluval enthusiasts

## Why This Product

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

## Key Features

- • **Vibrant Plant Growth:** Mineral-rich volcanic substrate promotes explosive, healthy plant development and vivid coloration.
- • **Superior Water Quality:** Porous granules enhance bacterial colonization, providing natural biological filtration and ammonia reduction.
- • **Instant Biological Boost:** Activates beneficial bacteria on contact with water to jumpstart your aquarium’s nitrogen cycle.
- • **Optimal Root Penetration:** Lightweight, non-compacting 1mm granules allow even the finest roots to spread effortlessly.
- • **Effortless Setup & Maintenance:** Ideal for small freshwater tanks or as a top layer in larger aquariums—just dump and watch nature thrive.

## Overview

FLUVAL Bio Stratum is a premium, 100% natural volcanic soil substrate from Japan, infused with dormant nitrifying bacteria that activate upon water contact to rapidly stabilize new aquariums. Its lightweight, porous 1mm granules support delicate root growth and promote vigorous plant health while enhancing biological filtration for crystal-clear water. Perfect for freshwater planted tanks, it delivers a thriving aquatic environment with minimal effort.

## Description

Product Description Made from 100percent natural, mineral-rich volcanic soil from Mount Aso in Japan and infused with beneficial nitrifying bacteria, Bio-Stratum is specifically formulated to provide immediate biological activity and maintain ideal conditions for a thriving planted aquarium. Characterized by its non-compacting 1 mm powder granules, Bio-Stratum allows plants with even the finest and most delicate roots to easily spread throughout the porous substrate while absorbing a powerful mix of nutrients, minerals and trace elements that promote explosive growth and overall health. Directions Ideal for use in smaller freshwater aquariums or as a top layer in larger tanks

Review: great stuff! - I LOVED THIS. great value for money, plants grow well and the size of the stratum isnt huge. ive placed sand over mine, but it looks okay without sand too.
Review: A must for any aquarium - So wish I had made the change sooner, after years of using gravel then sand an back to gravel, I decided to bite the bullet an give it a try , WOW opened the bag poured straight into the aquarium an slowly filled with water added some tap safe an I think my baby plec is gonna love its new waters once its cycled an ready , really good value an will be buying more for when i upgrade to a larger tank , it looks very pleasing on the eye , was worried as other customers reviews were very mixed , i found the best way is to just open an dump it in i slowly filled the aquarium pouring into the filter chamber so it didnt disturb now just to sit back an start letting nature take its course, excuse the food bits on the bottom as starting an new cycle while my little guy is growing out , would definitely recommend, an the water looks clear an crisp should of used it sooner

## Features

- Warning:Not suitable for children under 3 years. For use under adult supervision
- Warning:Toy inside. Adult supervision recommended
- Promotes healthy plant development, vigorous growth and vibrant color
- Infused with dormant beneficial nitrifying bacteria that, once in contact with water, are activated to break down waste and kickstart the nitrogen cycle
- Rapidly reduces ammonia levels to help stabilize water conditions in new aquariums
- Lightweight 1 mm powder format granules are non-compacting and allow even the finest and most delicate roots to easily penetrate and spread throughout substrate
- Porous granules promote extensive bacterial colonization and act as an additional source of biological filtration for improved water quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09XVP3HGK |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | 1,921 in Pet Supplies ( See Top 100 in Pet Supplies ) 18 in Aquarium Water Treatments |
| Brand | Fluval |
| Brand Name | Fluval |
| Country Of Origin | Japan |
| Customer Reviews | 4.6 out of 5 stars 1,385 Reviews |
| Included Components | Stratum |
| Item Form | Powder |
| Item Type Name | Stratum |
| Item Weight | 4.4 Pounds |
| Item form | Powder |
| Item weight | 4.4 Pounds |
| Manufacturer | Rolf C Hagen UK Ltd |
| Target Species | Aquatic Plants |
| UPC | 015561126960 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Fluval
- **Item form:** Powder
- **Item weight:** 2 kg
- **Manufacturer:** Rolf C Hagen UK Ltd
- **UPC:** 015561126960

## Images

![FLUVAL Bio Stratum, 2 Kg / 4.4 lb - Image 1](https://m.media-amazon.com/images/I/61oBFkaLAqL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ great stuff!
*by E***N on 22 January 2026*

I LOVED THIS. great value for money, plants grow well and the size of the stratum isnt huge. ive placed sand over mine, but it looks okay without sand too.

### ⭐⭐⭐⭐⭐ A must for any aquarium
*by T***Y on 22 November 2025*

So wish I had made the change sooner, after years of using gravel then sand an back to gravel, I decided to bite the bullet an give it a try , WOW opened the bag poured straight into the aquarium an slowly filled with water added some tap safe an I think my baby plec is gonna love its new waters once its cycled an ready , really good value an will be buying more for when i upgrade to a larger tank , it looks very pleasing on the eye , was worried as other customers reviews were very mixed , i found the best way is to just open an dump it in i slowly filled the aquarium pouring into the filter chamber so it didnt disturb now just to sit back an start letting nature take its course, excuse the food bits on the bottom as starting an new cycle while my little guy is growing out , would definitely recommend, an the water looks clear an crisp should of used it sooner

### ⭐⭐⭐⭐⭐ recommend
*by B***X on 8 November 2025*

Very good! Plants take root quickly and grow great. I recommend. The layer does not have to be thick and the price is very good. In stores I found the same product more expensive . Easy to use and safe for fish. Cover with another inert substrate.

## Frequently Bought Together

- Fluval 12696 Natural Mineral-Rich Volcanic Soil Bio Stratum for Planted Tanks, 4.4 lbs. - Aquarium Substrate for Healthy Plant Development, Growth, and Color
- 4Pcs Aquascaping Tools, Jeimier Aquascape Kit, Long and Strong Aquarium Tweezers, Scissors, Algae Scraper, Aquarium Plant Tools, Fish Tank Plant Trimming Kit
- API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-04-22*