---
product_id: 729865290
title: "Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8\" and 3/8\" Threaded Interfaces, Perfect for Nano Aquariums"
price: "404 zł"
currency: PLN
in_stock: true
reviews_count: 13
url: https://www.desertcart.pl/products/729865290-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable-co2
store_origin: PL
region: Poland
---

# Lasts up to 50 days at 1 BPS on 45g cartridge Compact 9.84" x 1.96" slim design Fits 5/8" & 3/8" threaded CO2 cartridges Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums

**Price:** 404 zł
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your nano aquarium game with sleek, hassle-free CO2 control!

## Quick Answers

- **What is this?** Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums
- **How much does it cost?** 404 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/729865290-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable-co2)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Leak-Proof:** Crafted from high-strength aluminum with precision sealing, this regulator guarantees safety and reliability for indoor use.
- • **Space-Savvy Elegance:** Ultra-compact regulator designed to fit seamlessly on any desktop or nano aquarium without cluttering your workspace.
- • **Precision CO2 Control:** Fine-tune bubble rates down to 1 bubble every 6 seconds for optimal plant growth and fish health, ensuring a lush, vibrant tank.
- • **Effortless, No-Fuss Setup:** Quick-connect tubing and disposable cartridges mean zero downtime and minimal maintenance—get your aquatic ecosystem thriving in seconds.
- • **Universal Thread Compatibility:** No adapters needed—works flawlessly with both 5/8" and 3/8" CO2 cartridges, saving you time and hassle.

## Overview

The FZONE Desktop Aquarium CO2 System is a compact, portable CO2 regulator designed specifically for nano and desktop aquariums. Compatible with both 5/8" and 3/8" threaded CO2 cartridges, it features a durable aluminum build and precision sealing to prevent leaks. Equipped with a 45g disposable cartridge, it delivers efficient CO2 dosing lasting up to 50 days at a steady bubble rate, with quick-connect tubing for easy setup and maintenance. Ideal for millennial aquarium enthusiasts seeking a stylish, reliable, and low-maintenance solution to boost aquatic plant health and tank aesthetics.

## Description

Product description co2 system aquarium We’ve upgraded to two gaskets Gasket Upgrade White gasket – Fits 5/8" and 3/8" threaded CO2 cartridges Red gasket – Thicker, for 3/8" thread only * Please ensure the gasket is properly in place before piercing to prevent potential CO2 leakage. Compact CO2 System Compared to other bulky CO2 cylinders, this mini aquarium CO2 regulator is designed to be lightweight, compact, and easy to handle. Its size is small enough to be effortlessly held with one hand, offering unparalleled convenience and portability. Perfect for smaller setups or limited spaces Compatible with 5/8" & 3/8" CO2 Cartridge Threads This aquarium CO2 regulator is designed with a 5/8'' thread and includes a 3/8'' adapter, ensuring compatibility with both 5/8'' and 3/8'' threaded CO2 cylinders. Precise Adjustment Valve Allows precise control of CO2 output, ensuring stable levels to meet different aquarium needs. Quickly connect CO2 pipes Quickly connect CO2 system pipes, making installation and removal easy for you to maintenance or adjustments. Pressure Gauge Displays internal CO2 pressure, helping you monitor remaining gas and adjust as needed. CO2 solenoid valve (optional) controls the opening and closing of CO2 supply, enabling automation, co2 conservation, and precise regulation to protect aquatic ecosystems. INSTALLATION GUID FZONE's Related Products Disposable CO2 Cartridges*2 CO2 Tubing CO2 diffuser FZ-QP-2-pack 45g Disposable CO2 Cartridges FZ-CO2-Pipe Aquarium CO2 Proof Tubing FZ-Check Valve Diffuser CO₂ Diffuser with Built-in Check Valve & Bubble Counter Specification 5/8'' Threaded interface ID: 3/16 Length: 16 inch S:19mm M:25mm L:33mm

Review: Perfect little quality unit for a desktop tank - I really love how compact this FZONE CO2 unit is. It fits perfectly next to my 10 gallon aquarium on my desk without taking up much space at all. It is very easy to use and a lot more economical than other systems I looked at. I added the solenoid to mine so it turns on and off automatically, which makes the whole thing super convenient. If you have a smaller planted tank and want something that works great and looks clean, this is a solid choice.
Review: Small, Consistent, Easy Management - Solid, well made, easy setup, and small/ easily hidden. Great inexpensive way to introduce controlled co2 for smaller tanks that doesn’t take up space. Daunted by other systems and price I opted for DIY methods previously- it worked but was never consistent with under/overproduction. This system worked immediately, takes a few seconds to manage, and I don’t need to constantly check on it throughout the day.

## Features

- Compact and Portable CO2 System: For small or desktop aquariums, standard large CO2 tanks can be bulky and impractical. This portable mini CO2 regulator is just 9.84 inches tall and 1.96 inches wide, making it a perfect fit for small spaces. Its slim design is easy to hold with one hand, offering both convenience and ease of use.
- Compatible with 5/8" and 3/8" CO2 Cartridges Threads: This CO2 regulator aquarium fits standard 5/8" threaded cylinders and comes with a 3/8" adapter, providing perfect compatibility with different cylinder sizes. No need to purchase additional converters or adapters, making it easy to use while saving you time and money.
- Long-Lasting High-Density：Liquid CO2’s higher density enables a compact design with extended usage. Through internal testing, we found that each bubble consumes only 0.03 ml of CO2. The mini CO2 regulator kit equipped with a 45g cartridge, can last up to 50 days at 1 BPS, on an 8-hour daily schedule.
- Effortless Setup ：Disposable CO2 cartridges eliminate the need for frequent refills, ensuring quick setup and low maintenance. The Quick-Connect feature allows instant CO2 tubing installation without rotating the pipe—setup is done in seconds.
- Safety and Reliability： This CO2 regulator system features high-strength aluminum,a seamless design, and precision sealing to ensure durability and prevent leaks. The single-use design eliminates refilling, providing safety and convenience, making it perfect for indoor use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.5 out of 5 stars 108 Reviews |

## Images

![Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums - Image 1](https://m.media-amazon.com/images/I/51N4sSf-ABL.jpg)
![Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums - Image 2](https://m.media-amazon.com/images/I/71G6plTr71L.jpg)
![Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums - Image 3](https://m.media-amazon.com/images/I/71XzE+MZ9IL.jpg)
![Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums - Image 4](https://m.media-amazon.com/images/I/71l-B0li80L.jpg)
![Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums - Image 5](https://m.media-amazon.com/images/I/71LnW5gxWAL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect little quality unit for a desktop tank
*by D***D on April 21, 2026*

I really love how compact this FZONE CO2 unit is. It fits perfectly next to my 10 gallon aquarium on my desk without taking up much space at all. It is very easy to use and a lot more economical than other systems I looked at. I added the solenoid to mine so it turns on and off automatically, which makes the whole thing super convenient. If you have a smaller planted tank and want something that works great and looks clean, this is a solid choice.

### ⭐⭐⭐⭐⭐ Small, Consistent, Easy Management
*by D***N on May 4, 2026*

Solid, well made, easy setup, and small/ easily hidden. Great inexpensive way to introduce controlled co2 for smaller tanks that doesn’t take up space. Daunted by other systems and price I opted for DIY methods previously- it worked but was never consistent with under/overproduction. This system worked immediately, takes a few seconds to manage, and I don’t need to constantly check on it throughout the day.

### ⭐⭐⭐⭐⭐ Beautiful, perfect, affordable and easy
*by S***. on June 26, 2025*

I bought this for my smaller 2 1/2 gallon tank and it’s perfect for that. It’s very beautiful very well-made it’s made for smaller aquariums and as long as you don’t do the bubble count too high it should last you for quite some time at least a month maybe two if you do one bubble a second but for smaller tanks, you might get away with even longer. FZone is a great company. I have many of their products and I love them. Super affordable and well made products that come with the best customer service. They are fast and responsive if you have any issues just email them and they will work with you to diagnose your issue and if you need a replacement or a new part they will send it out right away. I can’t say enough good things about FZone. This device makes absolutely no noise and it is very easy to assemble. A quick note- before you attach the CO2 tank make sure the white plastic gasket is in place. Mine came with the gasket in a baggy and the instructions didn’t mention installing it. I think it may have been an oversight in production but it happens. Other than that make sure you use CO2 tubing because regular airline tubing will not work because of the pressure of CO2. Also buy a drop checker device so you know how much co2 is in the water. Start slow and keep an eye out for fish gasping at the surface, thats a sign they are getting too much co2. It’s recommended to also keep an airstone attached to an airpump to keep oxygen in the water. Don’t be intimidated just do some research and you’ll get the most beautiful results with your plants and the fish thrive when the plants thrive. I would recommend this product for any nano aquatic enthusiast. I would recommend buying a nano diffuser as well. Thank you again FZone for another great product!

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-10*