---
product_id: 6693248
title: "Aquarium Stone for Natural Water Clarification and Odor Removal (Medium)"
brand: "ecobio-block"
price: "€ 114.03"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.nl/products/6693248-aquarium-stone-for-natural-water-clarification-and-odor-removal-medium
store_origin: NL
region: Netherlands
---

# Lasts 1.5-2 years Volcanic rock Safe for all aquatic life Aquarium Stone for Natural Water Clarification and Odor Removal (Medium)

**Brand:** ecobio-block
**Price:** € 114.03
**Availability:** ✅ In Stock

## Summary

> 🌊 Dive into Clarity with EcoBio-Block!

## Quick Answers

- **What is this?** Aquarium Stone for Natural Water Clarification and Odor Removal (Medium) by ecobio-block
- **How much does it cost?** € 114.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/6693248-aquarium-stone-for-natural-water-clarification-and-odor-removal-medium)

## Best For

- ecobio-block enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Use:** Perfect for both fresh and saltwater tanks up to 80 gallons!
- • **Eco-Friendly Solution:** Harness the power of volcanic rock and beneficial bacteria!
- • **Fish-Friendly Formula:** Safe for all aquatic life, ensuring a thriving ecosystem!
- • **Effortless Maintenance:** Say goodbye to frequent cleanings—let nature do the work!
- • **Transform Your Aquarium:** Experience crystal-clear water and fresh scents with EcoBio-Block!

## Overview

The EcoBio-Block2-Pack Stone is a natural water clarifier and odor remover designed for aquariums ranging from 30 to 80 gallons. Made from volcanic rock, it contains beneficial bacteria that disperse every 30 minutes, clarifying cloudy water and eliminating odors. This product speeds up the nitrogen cycle and reduces maintenance frequency by replenishing beneficial bacteria for up to two years, making it safe for all aquatic life.

## Description

Aquarium Stone for Natural Water Clarification and Odor Removal (Medium)

## Features

- Volcanic rock containing beneficial bacteria colonies, disperse about every 30 minutes. Clarifies cloudy water and eliminates odors
- Speeds up nitrogen cycle, with 100% pure bacteria in spores which germinate in early, middle and late stages, only germinating in the presence of organic waste.
- Reduces need for frequent maintenance by continually replenishing beneficial bacteria for 1 and a half to two years
- Safe for all fish, reptiles, amphibians and other aquatic life
- Simple to use, no mess aquarium care in fresh or salt water. M size treats tanks from 30 to 80 gallons.

## Images

![Aquarium Stone for Natural Water Clarification and Odor Removal (Medium) - Image 1](https://m.media-amazon.com/images/I/71SdVk4+YcL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Finally We Have Crystal Clear Water!
*by C***. on June 7, 2024*

We have Well Water, which everyone should know isn't the cleanest or purest water in the world. Our main water system has filters and a water softener. The quality of our water varies all the time.Our aquarium is 125 gallons. We clean the tank filters weekly and vacuum with a 1/4 water change every month. We have had this tank for 10+ years and the clarity of our aquarium's water has never been up for an award.Thought I'd take a chance on these EcoBio Blocks. Within 2 weeks, our fishie's aquarium water became Crystal Clear! Yes, That's Right. We Finally We Have Crystal Clear Water!Yes, it is a pricey investment, but it's Totally worth the end result! EcoBio Blocks claim the stones last at least 2 years.The Blocks are much larger and heavier than I had expected, no big deal. I use plants to help blend them into the natural green leafy decor."Ondersave" is the manufacturer. The following is from their website:"EcoBio-Block’s unique formula contains powerful, beneficial bacteria that keep water clear and odor-free."I wanted to know more specifics about the beneficial bacteria, but rightfully it is their top secret formula.We are Super Thrilled with these EcoBio-Blocks! And I'm sure our fishies are happy too! Wish I had found these years ago!Will definitely purchase these again.

### ⭐⭐⭐⭐⭐ Great Stone
*by S***E on August 18, 2022*

I couldn't believe this rock. It cleared up my 30-gal tank in a couple days. I used one rock in my tank. I highly recommend this stone if your tank is cloudy. Works great. I tried all kinds of methods to clear my tank, and this did it. I put it close to bubbler as recommended.

### ⭐⭐⭐⭐ Good but ugly
*by J***I on July 22, 2025*

It doesnt work instantly, it clears cloudy bb blooms cuz it gives them a place to live and breed, i found that having 2 in a 55 has significantly cut down on my bb use, mine are about 2 years old, i always scrub and lightly rinse every water change, yea they are ugly and big, but i believe when i was more of a novice they kinda saved my ass, in my experience, its a good home for plenty of bb, my tank doesnt smell i dunno if its cuz i do regular water changes and filter maitenance, or the stones, i dont think they do everything they claim to, but definitely a good place for ur bb to live

## Frequently Bought Together

- EcoBio-Block 2-Pack Stone for Aquariums, Medium - Natural Water Clarifier and Odor Remover, Treats 30 to 80 Gallons
- EcoBio-Block Stone for Aquariums, Medium - Natural Water Clarifier and Odor Remover, Treats 15 to 40 Gallons
- EcoBio-Block Stone Natural Volcanic Water Clarifier and Odor Remover Rock for Aquariums, Nano, 2-Pack

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-25*