---
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"
brand: "fzone"
price: "R1647"
currency: ZAR
in_stock: true
reviews_count: 11
category: "Fzone"
url: https://www.desertcart.co.za/products/729865290-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable-co2
store_origin: ZA
region: South Africa
---

# 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

**Brand:** fzone
**Price:** R1647
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your nano aquarium game with sleek, smart 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 by fzone
- **How much does it cost?** R1647 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/729865290-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable-co2)

## Best For

- fzone enthusiasts

## Why This Product

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

## Key Features

- • **Precision CO2 Control:** Fine-tune bubble rate down to 1 bubble every 6 seconds for optimal plant growth and fish health, avoiding over or under dosing.
- • **Space-Savvy Powerhouse:** Ultra-compact regulator perfect for desktop & nano aquariums, blending seamlessly into your workspace or living area.
- • **Effortless, No-Fuss Setup:** Quick-connect tubing and disposable cartridges mean zero downtime and zero mess—get your aquatic ecosystem thriving in seconds.
- • **Durable & Leak-Proof Design:** Crafted from high-strength aluminum with precision sealing, ensuring safety, reliability, and long-lasting performance indoors.
- • **Universal Thread Compatibility:** No adapters needed—works flawlessly with both 5/8" and 3/8" CO2 cartridges for ultimate convenience and cost savings.

## 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 1 bubble per second, with an easy quick-connect setup for hassle-free installation. Ideal for millennial aquarium enthusiasts seeking a stylish, reliable, and low-maintenance solution to boost aquatic plant health and create a thriving underwater environment.

## Description

desertcart.com : FZONE Desktop Aquarium CO2 System, CO2 Regulator with 45g Disposable CO2 Cartridge, Compatible with 5/8" and 3/8" Threaded Interfaces, Perfect for Nano Aquariums : Pet Supplies

Review: Beautiful, perfect, affordable and easy - 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!
Review: Great product! Don’t forget to insert the gasket! - I love this thing. Only one key piece of info missing from the instructions: the little white plastic piece (there is also a thicker red one) is a gasket that goes between the regulator and the tank. Make sure you insert that piece in there before you screw the tank on. Currently running this on my 10G rimless tank, no issues whatsoever. Easily keeps the drop checker a healthy emerald green, I messed around with the adjustment knob a bit and found it fairly easy to get this thing down as low as 1 bubble every 6 seconds. I may purchase another one for my 2.5G micro tank. I love this little thing, it’s so easy to change the tanks out and at a lower flow rate, should last a while. You can also use the smaller co2 cylinders available for airsoft toys by threading on the included brass adapter.

## 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 |
|---------------|-------|
| ASIN | B0DY46N5WV |
| ASIN  | B0DY46N5WV |
| Best Sellers Rank | #13,097 in Pet Supplies ( See Top 100 in Pet Supplies ) #22 in Aquarium Air Pump Accessories |
| Brand Name | FZONE |
| Color | silver grey |
| Customer Reviews | 4.5 4.5 out of 5 stars (89) |
| Date First Available | February 22, 2025 |
| Date First Available  | February 22, 2025 |
| Directions | 1 |
| Included Components | CO2 REGULATOR |
| Item Package Dimensions L x W x H | 8.62 x 7.87 x 2.4 inches |
| Item Weight | 1.17 pounds |
| Item model number | MINI02 |
| Item model number  | MINI02 |
| Manufacturer | FZONE |
| Manufacturer  | FZONE |
| Model Name | Co2 system |
| Package Dimensions  | 8.62 x 7.87 x 2.4 inches; 1.17 Pounds |
| Specific Uses for Product | Aquarium |
| Target Audience Keyword | Aquarium |
| Warranty Description | 1 |

## 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)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐⭐ Great product! Don’t forget to insert the gasket!
*by D***M on July 13, 2025*

I love this thing. Only one key piece of info missing from the instructions: the little white plastic piece (there is also a thicker red one) is a gasket that goes between the regulator and the tank. Make sure you insert that piece in there before you screw the tank on. Currently running this on my 10G rimless tank, no issues whatsoever. Easily keeps the drop checker a healthy emerald green, I messed around with the adjustment knob a bit and found it fairly easy to get this thing down as low as 1 bubble every 6 seconds. I may purchase another one for my 2.5G micro tank. I love this little thing, it’s so easy to change the tanks out and at a lower flow rate, should last a while. You can also use the smaller co2 cylinders available for airsoft toys by threading on the included brass adapter.

### ⭐⭐⭐⭐⭐ Sleek design and simple setup
*by T***A on August 30, 2025*

Overall build quality is great with the sleek all metal housing. Easy to assemble. First time using one of these cartridge CO2 systems (I use to use a 10lb tank). When you screw in the cartridge, make sure to quickly tighten it when you hear the cartridge get punctured. A small amount of CO2 will be heard leaking out so make sure to tighten it up quickly. So far it’s been working fine for my nano tank. No issues using it with my ADA diffuser. I also ordered the solenoid valve which works great as well. Actuates without issue while connected to a mechanical timer. Green light lights up when on and valve properly opens when it’s supposed to and closes when automatically powered off. Holds bubble count fine even after power cycle.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.za/products/729865290-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable-co2](https://www.desertcart.co.za/products/729865290-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable-co2)

---

*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-16*