Description
GLA GRO Cartridge CO2 Kit
The GLA GRO Cartridge CO2 Kit is a compact, all-in-one solution designed for nano and small planted aquariums. Using disposable CO2 cartridges, this system provides a simple and convenient way to introduce CO2 without the need for a full-size cylinder.
Ideal for smaller setups or users looking for a compact, low-profile CO2 solution, this kit delivers reliable CO2 control in a space-efficient design. Built with precision components found in our full-size regulators, it offers consistent performance in a simplified format.
Who This Is For
- Nano and small aquarium setups
- Beginners looking for a simple CO2 solution
- Users who prefer a compact system without a large CO2 cylinder
For larger aquariums or long-term use, we recommend a full-size CO2 system with a refillable cylinder.
What’s Included
- GLA GRO Cartridge CO2 Regulator with integrated solenoid and bubble counter with check valve
- 74g disposable CO2 cartridge
- Heavy-duty solid aluminum cartridge base
Key Features
- Compact CO2 Solution: No large tank required
- Cartridge-Based System: Uses disposable CO2 cartridges for convenience
- Precision Needle Valve: Fine-tune CO2 output with stable control
- Integrated Solenoid: Automates CO2 on/off with a timer or controller
- Compact Footprint: Ideal for nano tanks and tight spaces
Performance & Design
- Premium aluminum regulator body with durable internal components
- Laser precision metal-on-metal valve seat for consistent regulation
- Multi-stage micron filtration for clean CO2 delivery
- Pressure tested and leak checked prior to shipment
- Engineered to meet GLA performance standards and tested to ensure consistent, dependable operation.
Important Notes
- Designed for small aquariums and nano setups
- CO2 cartridges are disposable and must be replaced when empty
- Cartridge lifespan will vary based on aquarium size and CO2 usage
- A diffuser or reactor is required for in-tank CO2 delivery (sold separately)
Specifications
- Installation: Disposable CO2 cartridge (74g)
- Pressure Reduction: Single Stage
- Output Pressure Range: 0–70 PSI
- CO2 Distribution: Single Aquarium
GLA CO2 Equipment
GLA CO2 regulators are engineered to meet our exacting standards for precision, reliability, and long-term performance. Each unit undergoes inspection and testing in the USA to ensure consistent, dependable operation in demanding aquarium environments.
Trusted by aquascapers worldwide, GLA CO2 equipment has set a benchmark for quality—delivering professional-grade performance for aquarists who demand precision, reliability, and long-term results.
FAQ
How long does a cartridge last?
Cartridge lifespan depends on aquarium size and CO2 usage, but this system is best suited for nano and smaller aquariums where consumption is lower.
Can this be used on large tanks?
This system is designed for nano and small aquariums. For larger tanks, a full-size CO2 system is recommended.
Do I need anything else?
Yes. A diffuser or reactor is required to introduce CO2 into the aquarium.
Is this suitable for beginners?
Yes. This is one of the simplest ways to get started with CO2 in a planted aquarium.
CO2 Cartridge Refills
Replacement 74g CO2 cartridges are available and easy to install, allowing you to quickly get your system back up and running.
View 74g CO2 Cartridge Refills →
Support & Warranty
- Lifetime Warranty: Regulator covered against manufacturing defects
- Lifetime Support: Expert assistance available
- Installation Guidance: We’re here to help you get started
Limited Lifetime Warranty: GLA CO2 regulators are covered by a limited lifetime warranty against defects in materials and workmanship for the original purchaser. This warranty is non-transferable and applies only when the product is used in accordance with Green Leaf Aquariums, LLC (GLA) guidelines and standard operating practices.
Warranty coverage applies only to products purchased directly from greenleafaquariums.com or authorized sales channels. Proof of purchase may be required for all warranty claims.
This warranty does not guarantee product performance for the lifetime of the purchaser. Product lifespan may vary based on usage, installation, and operating conditions.
- Coverage applies only to manufacturing defects under normal use
- GLA reserves the right to repair, replace, or issue store credit at its sole discretion
- If a product is discontinued, a comparable replacement or credit may be provided based on product condition and age
Warranty Exclusions:
- Improper installation, misuse, neglect, or damage
- Modifications, alterations, or unauthorized repairs
- Use of improper tools or excessive force
- Normal wear and cosmetic damage that does not affect functionality
Important: A wrench should only be used to secure the regulator to the CO2 cylinder. Damage resulting from improper use of tools or incorrect installation methods is not covered under this warranty.
GLA is not responsible for damage caused by improper installation or use. However, repair services and support may be available for a fee.
CO2 cylinders, tubing, cartridges, and other consumable or accessory items are not covered under the regulator warranty unless otherwise specified.
Customer Reviews
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Sweet nano co2 kit.
This kits is pretty cool, no complaints other than you ned to buy a diffuser but I understand. Its simple to set up in minutes. Whats cool is you can use this same kit on larger cylinders in the future. All they said was to buy the GLA adapter and your ok to go. Very effective and my bubble counter is always steady. I use mineral oil in my bubble counter to ovoid having to refill often.
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Very cool little kit, that does so much more.
I could not for the life of me find a place to fill my 5lb in my new town. Luckily I did find a place that was advertising but they are not yet open for another 4 months on the new place. GLA assured me this would work later on a full sized provided I get the extra adapter. This bad boy works terrific and we are super happy.
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Its perfect for my dorm room!
I dont think Im technically allowed to have this in my dorm room first year of collage. Whats great about this is it hides super easily. Full on pressurized co2 into a small compact package. This was perfect!
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Pro grade mini co2 system.
Much nicer than my Tropica mini co2 system. This one has a complete solenoid system built into the body. You can plug into any outlet of basic timer, I opted for the Bluetooth timer for basic on/off automation. So neat, I can control my co2 from my phone in terms of being on/off. You will need some tubing and a diffuser. They dont include one but thats understandable as there are so many sizes. It sits on my kitchen counter and I get to watch it all day!
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Gro kit
I am still mind blown by the quality of this little regulator, and for the money you get all the goodies to make it a kit too. The solenoid is really nice for keeping that hands free operation once dialed in as well. The bubble counter and needle valve are by far the smoothest I've felt. So add on a diffuser and check valve of choice and your good to go!
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Excellent Nano co2 kit.
I love this nano co2 system. Its been perfect for my desktop. I added the acrylic diffuser and soft tubing to the kit and its been rock solid. I learned later that this regulator also works with paintball and standard 5lb co2 cylinders. 3 in 1!
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Excellent system for nano tank
Prior to purchasing this system I was using a basic starter kit (Fluval 45g kit) for my 3 gallon. This system, especially due to the solenoid and separate valves has allowed for much better precision and daily fiddling to get the bubble count right. The flow is consistent and it's a set of and forget it system which has made things so much easier. My plants are loving it.
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Great Service & Great Products!
Sent an inquiry thru the website abt this & got an immediate response. Been out of the hobby awhile & my q?s weren’t dismissed. Thank u. As for the CO2 system— the value is hard to beat, the solenoid alone pays for Itself. The whole unit works wonderfully & there r very detailed instructions included. All you need is CO2 Tubing, a Check Valve & a Diffuser & you’re all set! I bought the replacement CO2 cartridges but an adapter they sell here can make it fit onto larger tanks /if preferred.
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Absolutely perfect
You will not find a better nano co2 kit on the planet. This is the best Nano co2 kit I have found anywhere. Not even ADA kit can compare to this in price,form and function. When this arrived I was truly blown away at its build quality. Its heavy duty and means business. The guys at GLA have been doing co2 systems since 2006, they know what they are doing. This nano kit comes totally complete and has been working flawless in my 5.5g nano tank for a few months now without issue. The only thing I have to do is refill the bubble counter. Which by the way, you have the option to run an inline bubble counter. You dont have to use the supplied co2 bubble counter. You can attach tubing directly to the needle valve, it comes ready to go. Look no further, this is THE nano co2 kit.
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Co2 cartridge regulator
Dipping my toes into trying CO2 for planted tank, and ordered the co2 cartridge set-up to try out in a nano. Regulator solid, shiny :) and easy to adjust, and holds its count even at quite low rate. Arrived quickly, well packaged, with good instructions. All good with me, coming back in a few months for my next regulator investment.
