--- product_id: 729865290 title: "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" price: "€ 93.63" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.sk/products/729865290-fzone-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable store_origin: SK region: Slovakia --- # 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 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 **Price:** € 93.63 **Availability:** ✅ In Stock ## Summary > 🌿 Elevate your nano aquarium game with sleek, hassle-free CO2 control! ## Quick Answers - **What is this?** 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 - **How much does it cost?** € 93.63 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/729865290-fzone-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable) ## 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 ## 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 107 Reviews | ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/51N4sSf-ABL.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/71G6plTr71L.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/71XzE+MZ9IL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/71l-B0li80L.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/71LnW5gxWAL.jpg) ## Available Options This product comes in different **Pattern** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by D***D on April 21, 2026* ### ⭐⭐⭐⭐⭐ Review *by S***. on June 26, 2025* ### ⭐⭐⭐⭐⭐ Review *by J***S on March 11, 2026* --- ## 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.sk/products/729865290-fzone-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable](https://www.desertcart.sk/products/729865290-fzone-desktop-aquarium-co2-system-co2-regulator-with-45g-disposable) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-07*