---
product_id: 48873753
title: "Air Stone (3.5 x 1cm), Aquarium Aeration Stone, Uniform Bubble Flow"
brand: "biorb"
price: "€ 5.03"
currency: EUR
in_stock: true
reviews_count: 13
category: "Bi Orb"
url: https://www.desertcart.gr/products/48873753-air-stone-3-5-x-1cm-aquarium-aeration-stone-uniform
store_origin: GR
region: Greece
---

# Uniform bubble flow for optimal oxygenation Easy tool-free replacement every 3 months Compact 3.5 x 1 cm inert mineral stone Air Stone (3.5 x 1cm), Aquarium Aeration Stone, Uniform Bubble Flow

**Brand:** biorb
**Price:** € 5.03
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your aquarium’s vibe with effortless oxygen flow!

## Quick Answers

- **What is this?** Air Stone (3.5 x 1cm), Aquarium Aeration Stone, Uniform Bubble Flow by biorb
- **How much does it cost?** € 5.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/48873753-air-stone-3-5-x-1cm-aquarium-aeration-stone-uniform)

## Best For

- biorb enthusiasts

## Why This Product

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

## Key Features

- • **Visual Serenity:** Creates calming bubbles that elevate your aquarium’s ambiance
- • **Inert & Safe Design:** Non-toxic mineral stone that won’t alter water chemistry
- • **Effortless Maintenance:** Quick swap without tools keeps your tank thriving
- • **Consistent Oxygen Boost:** Ensures steady airflow for healthier fish and plants
- • **Universal Compatibility:** Perfectly tailored for biOrb freshwater & saltwater tanks

## Overview

The biOrb Air Stone (3.5 x 1 cm) is a compact, inert aeration component designed to deliver a uniform stream of bubbles beneath your biOrb filter cartridge. It optimizes oxygen exchange, supports aquatic life health, and enhances tank aesthetics with a calming bubble display. Easy to install and replace every 3 months, it’s safe for all freshwater and saltwater biOrb aquariums.

## Description

Free delivery and returns on eligible orders. Buy biOrb Air Stone (3.5 x 1cm), Aquarium Aeration Stone, Uniform Bubble Flow | Easy To Replace, Safe For Freshwater & Saltwater Aquariums, Essential Fish Tank Accessories at desertcart UK.

Review: Didn’t know I needed it! - My orb had no bubbles at all. While looking for reasons as to why it might be and knowing it wasn’t the pump at fault, I read that someone replaced the air stone. Took out the old one, put the new one and I have never seen bubbles like it. It’s the first time time I have done this and I have had my tank for years so it probably needs replacing more frequently. Simple little thing that has already made a huge difference. Cheap at the price and came next day as per prime. Definitely recommend. Cheaper than a pump.
Review: Good - Good biorb

## Features

- Essential Aeration Component for biOrb Tanks: The biOrb Air Stone sits beneath the filter cartridge at the base of your aquarium, producing a fine, steady stream of air bubbles for consistent oxygen circulation and a healthier aquatic environment.
- Supports Efficient Oxygen Exchange: By regulating the airflow from your aquarium pump, this aeration stone ensures optimal surface movement - helping oxygenate the water and improve conditions for fish, plants and beneficial bacteria.
- Compact, Safe & Non-Toxic Design: Measuring 3.5 x 1 cm, this solid mineral stone is completely inert - it won’t affect pH or water quality. It’s safe for all fish and ideal for both freshwater and saltwater biOrb setups.
- Easy To Install & Replace: No tools required - simply remove your biOrb filter cartridge, swap out the air stone, and reattach. We recommend replacing every 3 months to maintain consistent airflow and system efficiency.
- Creates Calming Bubble Display: As well as supporting aquarium health, the air stone’s gentle bubble effect enhances your tank’s look and feel - ideal for biOrb owners who value visual tranquillity and fish-friendly design.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000S5JNBE |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | 4,041 in Pet Supplies ( See Top 100 in Pet Supplies ) 2 in Aquarium Air Pump Accessories |
| Brand | biOrb |
| Brand Name | biOrb |
| Country Of Origin | China |
| Customer Reviews | 4.7 out of 5 stars 4,253 Reviews |
| Global Trade Identification Number | 00822728000243 |
| Included Components | See Description |
| Item Form | Solid |
| Item Highlight | Easy To Replace, Safe For Freshwater & Saltwater Aquariums, Essential Fish Tank Accessories |
| Item Type Name | biOrb Air Stone |
| Item Weight | 0.2 Ounces |
| Item form | Solid |
| Item weight | 0.2 Ounces |
| Liquid Volume | 1 Millilitres |
| Liquid volume | 1 Millilitres |
| Manufacturer | OASE |
| Manufacturer Part Number | 46029 |
| Model Number | 46029 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Product Warranty | Manufacturer Fault |
| Target Species | Fish |
| UPC | 822728000243 |
| Unit Count | 1 count |
| Unit count | 1 count |

## Product Details

- **Brand:** biOrb
- **Item form:** Solid
- **Item weight:** 0.2 Ounces
- **Liquid volume:** 1 Millilitres
- **Number of Packs:** 1

## Images

![Air Stone (3.5 x 1cm), Aquarium Aeration Stone, Uniform Bubble Flow - Image 1](https://m.media-amazon.com/images/I/61tqjxv6nWL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this fit over air tube with bioorb sculpture too over air tube?**
A: The biOrb airstone sits in the bottom base of the filter assembly. The filter and bubble tube sit over the air stone.  We hope this helps. For further assistance, please contact our customer service team at 888-755-5646, Monday through Friday, 8am - 5pm, EST. We hope this helps. Best Regards, Your biOrb Aquatic Specialist, Jennifer.

**Q: Is this something I just drop in the hole the bubbles come out of?**
A: Hello. The biOrb airstone sits in the hole inside the filter housing. You would need to remove the bubble tube and filter to access the airstone. We hope this helps. Your biOrb Specialist, Natalie.

**Q: Can you use this on a regular undergravel filter attachment**
A: no. the hole to attach it is bigger than the average air pump attachment.

**Q: Why would someone need or use an air stone?**
A: To add air to the water, it helps circulate the water and provides air for the fish. I have one in the bottom of the filter pack in my BiOrb tank, one came with the tank and I replace as needed.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Didn’t know I needed it!
*by C***L on 22 October 2023*

My orb had no bubbles at all. While looking for reasons as to why it might be and knowing it wasn’t the pump at fault, I read that someone replaced the air stone. Took out the old one, put the new one and I have never seen bubbles like it. It’s the first time time I have done this and I have had my tank for years so it probably needs replacing more frequently. Simple little thing that has already made a huge difference. Cheap at the price and came next day as per prime. Definitely recommend. Cheaper than a pump.

### ⭐⭐⭐⭐⭐ Good
*by B***Y on 9 January 2026*

Good biorb

### ⭐⭐⭐⭐⭐ Delivered safely
*by O***N on 28 August 2026*

Brilliant item, good service, good value 👍

## Frequently Bought Together

- biOrb Air Stone
- biOrb Service Kit,White,Single
- biOrb air column protection

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-10-09*