The UNS Micro CO₂ Complete Kit (7-Piece) solves everything by packing a professional-grade, space-saving carbon system into one single box. Built specifically for smaller tanks and minimalist desktop setups, this all-in-one kit includes everything from the precision micro regulator and electronic solenoid down to the gas cartridge, stand, pressure tubing, and ceramic diffuser.
Note: While this kit includes everything you need out of the box, each component can also be purchased individually if you ever want to customize or replace parts down the road.
| Attribute | Specification |
|---|---|
| Brand | Ultum Nature Systems (UNS) |
| Model | UNS Micro CO2 Complete Kit - 7 Piece |
| Hardware Finish | Modern Sleek Gunmetal |
| Operating Pressure Range | 25–60 PSI (1.72–4.14 BAR) |
| Cylinder Compatibility | Threaded Disposable 95g CO2 Cartridges Only (Will not fit paintball or CGA320 cylinders) |
| Solenoid Spec | Integrated Low-Heat 12V DC Electronic Solenoid |
| Included Diffuser Size | Small Ceramic Disc Atomizer (Optimized for nano aquariums) |
**Important Shipping Note: Due to federal transport regulations for pressurized gas, this item can only be shipped to the lower 48 states of the US via UPS Ground. Express or air shipping methods are completely unavailable for this product.
1. Is this kit ready to use out of the box?
Yes! The UNS Micro CO2 Complete Kit contains all necessary equipment, including the initial 95g gas cartridge, tubing, diffuser, and electronic solenoid.
2. Can I use this 7-piece kit on large display tanks?
This micro system is optimized specifically for nano and desktop aquariums (generally under 15–20 gallons). For larger aquariums requiring higher gas volume reserves, we recommend using full-size CGA320 cylinders paired with the UNS Pro Dual Stage Regulator.
3. How do I automate the on/off schedule with the included solenoid?
Simply plug the included 12V DC power transformer into a standard wall timer or Wi-Fi smart plug. Set the plug to turn on 1 hour before your aquarium lights turn on and off 1 hour before light shutoff.
Setting up pressurized carbon dioxide is far simpler than it appears! Explore our step-by-step guides to master your setup:
Overall rating: 4.5 / 5 from 18 reviews.
Review topics: ["performance","quality","kit","system","tank","addition","plants","co2","unit"].
"Great quality material for everything, including the 3D printed base for the cartridge. Easy to assemble. Read instructions for best results"
"Solid little unit. Very happy as this was not much more than the competitors at this size but includes the ability to turn the system on and off with a smart plug."
"Arrived on time"
"This is my first CO2 kit and I am so excited to finally try out CO2 in my Nano tank. I look forward to seeing what a difference this will make to my plants. The kit was complete and ready to install. It was very easy and straightforward to install. I added a manual timer to control the Solenoid to turn on and off with my aquarium lights and also added a drop checker to help me determine the amount of CO2 I should have in my tank. The build quality of the CO2 kit is very high and the ability to adjust the exact amount of CO2 was impressive."
"Great little co2 kit for a nano tank. Setup was easy and canister has lasted for past 2 months. Buce delivered quickly and well packaged."
"Good, but need to replace tank often"
"Set-up was a breeze. Just remember that the regulator has a small o-ring hidden under the sticker. Set-up was completed within minutes. It’s a great option for smaller tanks. Will see how long the CO2 lasts."
"Great little CO2 system for my nano tank. Easy to setup and use. Will be buying another kit for my second tank."
"I bought it before and the one i currently have works amazing. Would recommend for anyone looking for a micro co2 system that you can and forget!"
