Description
GLA GRO Planted Aquarium CO2 System
The GLA GRO CO2 System provides a complete, reliable foundation for adding CO2 to your planted aquarium. Designed for simplicity and performance, this system includes the essential components needed to get started with stable CO2 injection in a single aquarium setup.
Built around the GLA GRO CO2 Regulator, this setup is ideal for aquarists who want a straightforward, dependable solution without unnecessary complexity. From regulator to tubing, each component is selected to work together for clean installation and consistent operation.
Who This Is For
- Aquarists starting their first CO2 system
- Single aquarium setups
- Users looking for a simple, complete CO2 solution
If you plan to run multiple aquariums, the GLA GRO regulator can be expanded using our GRO CO2 splitter. For optimal pressure stability and long-term performance—especially in multi-tank setups—we recommend a dual-stage regulator such as our GLA PRO-DS or DS-MINI.
What’s Included
- GLA GRO CO2 Regulator with integrated solenoid and bubble counter with check valve
- 5 lb aluminum CO2 cylinder (ships empty)
- CO2-resistant aquarium tubing (10 feet)
- GLA OEM CO2 tank seal
Key Features
- Complete Starter Setup: Core components needed to begin CO2 injection
- Single Stage Regulator: Reliable CO2 delivery for single aquarium systems
- Precision Needle Valve: Fine-tune CO2 output with stable control
- Integrated Solenoid: Automate CO2 with a timer or controller
- Compact & Clean Design: Organized setup with minimal footprint
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
Important Notes
- CO2 cylinder ships empty and must be filled locally
- A diffuser or reactor is required for in-tank CO2 delivery (sold separately)
- Recommended for use with a timer or controller for automated operation
Specifications
- Installation: CGA-320 (USA standard CO2 cylinders)
- Pressure Reduction: Single Stage
- CO2 Distribution: Single Aquarium
- Output Pressure Range: 0–70 PSI
GLA CO2 Systems
Designed in the USA, GLA CO2 systems reflect our commitment to precision engineering, reliability, and long-term performance. Each regulator is built using premium pneumatic components and tested to ensure consistent, dependable operation in real-world aquarium environments.
Trusted by aquascapers worldwide, GLA CO2 equipment is recognized for its clean design, durability, and consistent performance. From entry-level setups to advanced systems, our goal remains the same—deliver dependable CO2 solutions that meet the demands of serious planted aquariums.
FAQ
Does this include everything I need?
This system includes the core components, but you will still need a diffuser or reactor to introduce CO2 into the aquarium.
Does the CO2 tank come filled?
No. The cylinder ships empty and must be filled at a local gas supplier.
Can this run multiple aquariums?
No. This system is designed for a single aquarium.
Is this good for beginners?
Yes. This is an excellent entry-level CO2 setup due to its simplicity and reliability.
Optional Add-On: CO2 Splitter (Multi-Tank Expansion)
Expand your GLA GRO CO2 System to run multiple aquariums with the GLA CO2 Splitter. Designed specifically for compatibility with GLA GRO regulators, this add-on allows you to distribute CO2 to additional tanks from a single regulator.
Each outlet includes its own precision needle valve, allowing independent control of CO2 flow to each aquarium for optimal tuning and plant growth.
- Expands CO2 distribution to multiple aquariums
- Independent needle valves for precise control per tank
- Easy installation directly onto GLA GRO regulators
- Designed for seamless compatibility with GLA GRO systems
Support & Warranty
- Lifetime Warranty: Regulator covered against manufacturing defects
- Lifetime Support: Expert assistance available for setup and operation
- Installation Guidance: We’re here to help you get started
The GLA GRO CO2 System is designed to simplify the process of adding CO2 to your planted aquarium. It delivers dependable performance with minimal setup complexity—making it an ideal starting point for consistent plant growth.
Warranty
Limited Lifetime Warranty: The GLA GRO CO2 Regulator included in this system is 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.
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 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
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.
Customer Reviews
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We are loving GLA products and support!
Its been such a wonderful journey with GLA since they have been helping with our 150g new aquascape. Its sorta a big deal in my neighborhood since everybody comes to my house every weekend for the BBQ. Our tank id densely planted with quite an expense in plants that we have curated over the months. Now that we have this system in place the plants have really taken off. Super easy to set up and is just excellent quality. We are also using the GLA Nectar AIO fertilizer in medium dosage setting and things are just fantastic. Ive gotten a few neighbors on board to set up tanks and to me this is such a blessing this day and age. Who would have thought my planted tank would bring a community together. Thank you GLA and staff!
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Worth every penny spent!
Highly recommend this co2 system from GLA. Extremely high quality for what you are paying. Do know you need a couple parts to add, like a co2 diffuser and drop checker. David at GLA helped me choose both and only took minutes to get me squared away. I buy a lot of stuff on Amazon for my tanks and over the years I noticed how cheap they were. I decided to dicth amazon and go direct to dealers the the quality from GLA was leaps and bounds the Amazon junk. Cant beat the service with very helpful knowledgable staff. I asked so many questions I felt so bad! But, when people love what they do the service is amazing. My tank is being fed co2 as I write this review and the diffusion is fun to watch. GLA if you see this review you should figure a way for your customers to add photos, would love to share some!
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A system worth every penny.
This is a terrific system. You get good value and price with a team of customer service Ive yet to experience with anything involving customer service these days. It took only 10 minutes to fully set up and it was effortless. The system has been turning on and off daily as it should and absolutely no interventions. Always steady and no messing around. If I need to feed another tank I plan to get the splitter system they offer. Well made equipment and well priced from a US based company.
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Excellent service and even better quality.
My first co2 system for our planted tank. After weeks of reading online and in Facebook groups we knew GLA was the o e to go to. We were confused as what system to buy with all the options. After consulting with tech support they took the time to explain everything and even offer phone text support. These days almost everything we buy is online. Working with GLA was online, but they made it so comfortable to buy that we felt like we were in a store. It felt like somebody was holding our hand the whole way. An experience like no other online purchase we’ve ever made. Certainly not Amazon. The staff is amazing and kudos to whoever trains them. The quality of the product alone was above and beyond our expectations at such a low price when considering all you get. Neatly packed and arrived with speed our aquascape is brimming with growth. I’m hoping to start selling my clipping one day on my Etsy! Thank you GLA, you have a loyal customer for life. Sincerely, Kenisha and family.
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Top tier co2 kit!
Loving our new co2 system from GLA. Arrived as fast as Amazon and with supirior customer support. The regulator is extremely well made, its not chincy at all. Ive seen and held Fzone regulators and Co2Art regulators many times and I was envious then. But! Once a GLA unit is in your hands there is just no comparison. This is real high pressure co2 equipment. Rest assured GLA is real co2 hardware vs the others.
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Brilliant co2 system and very nice!
Was a pleasure working with GLA trying to figure out my co2 system needs. This Gro system has been working wonderfully and my tank has never looked better. Very well priced and quality to boot, cant ask much more than that coming from GLA! The very best!
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Worth every penny invested.
I normally dont leave reviews out of pure laziness but I feel this is necessary. These days everything I buy is online and this co2 system was no exception to the rule. My LFS actually advised I go with GLA vs what they were selling which was Ultum Nature systems. I was able to touch and feel the Ultum system so I have a good idea to compare. Instantly the GLA was double the weight, about the same size but much heavier. The little needle valve also felt so much better when you adjsut the bubble rate. At the LFS the Ultum kit felt scratchy and oddly responsive. I could tell the GLA kit was a finer piece of equipment, 9 months in and its been doing fantastic. It only took me minutes to install and I have not touched it since. Actually I do wipe it down to keep dust off it. I have an ADA cabinet so its completely visible in my living room. GLA makes one exceptional co2 system at a great price. The customer service was astounding, very kind and helpful people that made me feel like family. Very rare these days. GLA are highly admirable people son dont hesitate to buy from them. I love this Gro co2 system!
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Marvelouse system and customer support.
Pleased is an understatement, GLA is a pleasure to do business with. Kind and helpful and provide top quality co2 system with this Gro co2 system. Arrived speedily and very well cared for in transit with UPS. I knew right away it was great quality and has been now for a few months. You can rest assured GLA is top tier.
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Very nice!
Very pleased with this kit. Great price and the customer service is something they should write a book on, just amazing. GLA is the way to go!
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Will be buying another system soon!
Love this co2 system and definitely plan to buy another kit today. Can’t express my gratitude enough to GLA for the service. They helped me pick this kit and it’s been flawless everyday.