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GLA GRO Aquarium CO2 System

39 reviews Write a Review
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
GLA GRO Aquarium CO2 System
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Pressure Reduction



CO2 Distribution


GLA GRO Planted Aquarium CO2 System

GLA's complete GRO CO2 system provides planted aquarium hobbyists with the essential CO2 equipment they need to grow a thriving aquascape. Our extremely reliable CO2 equipment allows you to focus on what's important, growing and enjoying your planted tank. Our GLA GRO CO2 System includes the following equipment:

  • GLA GRO Aquarium CO2 Regulator
  • 5lb CO2 tank, aluminum CO2 cylinder (ships empty). Configure your system with one or two 5lb cylinder tanks above.
  • Premium plastic check valve
  • Nylon seal
  • CO2 resistant aquarium tubing (10 feet)

Our GLA GRO CO2 Regulator is a compact and sleek, high performance everyday CO2 regulator for single aquarium installation. The GLA GRO CO2 regulator is built with premium components, perfectly tailored to your planted aquarium, for superior CO2 distribution. We design our CO2 regulators in the USA, handcrafted with premium pneumatic components to provide a distinctly reliable and innovative solution for CO2 distribution. Our CO2 engineers build and test each regulator to order and provide lifelong customer support for each and every regulator we build. Our innovative, forward thinking CO2 technology is highly rated in the planted aquarium community. We have pushed the limits of aquarium CO2 technology, setting a new industry standard for CO2 distribution. We are dedicated to providing professional CO2 regulators and aquarium CO2 systems to the planted aquarium hobbyist and to specialized industries seeking the best CO2 equipment available.

  • Premium aluminum regulator body
  • Micro precision needle valve rotates 360 degrees
  • Innovative, optimal performance 'cool touch' solenoid valve
  • Premium GLA bubble counter with check valve to protect your equipment
  • Multistage micron filtration inlet and outlet
  • Laser precision metal-on-metal valve seat
  • Integrated pressure relief valve (PRV)
  • Premium quality pneumatic components
  • Custom designed, pressure tested, and leak tested in the USA
  • Primed for your next aquascape
  • Handcrafted by our expert CO2 engineers for everyday life, so you can enjoy your planted aquarium without worry.
  • We are dedicated to providing unparalleled CO2 technology and setting the industry standard of CO2 distribution excellence.
  • We are confident that our GLA CO2 regulators rise above and outlast the competition.
  • Installation: CGA320
  • Output Pressure: 0 - 70 PSI

Our Standards

Handcrafted Excellence
✓ exceptional care and pride in what we build
✓ bringing our passion to life

Elite Performance
✓ for your next aquascape
✓ and for every aquascape after that

Built to Last
✓ your everyday super CO2 regulator
✓ a regulator that is truly unmistakable

Our Guarantees

Installation Support
✓ dedicated expert installation support
✓ we are here to help you get started

Lifetime Warranty
✓ rock solid lifetime warranty
✓ your peace of mind guaranteed

Lifetime Support
✓ we back what we build
✓ we will be here to help you into the future



Limited Lifetime Warranty: GLA GRO CO2 Regulators are covered under a limited lifetime non-transferrable warranty against defects in materials and workmanship, when used in strict compliance with Green Leaf Aquariums, LLC (GLA) recommended usages, while the goods are under the ownership and control of the original purchaser. The lifetime warranty does not guarantee that the product will perform for the lifetime of the buyer. The actual time that the product can be expected to perform is determined by the highest standard of working time for products of its kind and per the buyers usage and application. If the product is discontinued, the warranty will remain a limited period longer, and then claims will be warranted with a similar product or credit, as determined by GLA, and appropriate to the product's age and condition at time of claim. GLA does not assume any responsibility or make any warranties with respect to items which are modified, altered, abused, misused, damaged, or serviced by unauthorized personnel. The warranty is void if at any time a wrench is used on the regulator, for any purpose, other than to tighten the regulator to the CO2 cylinder. It is important to read instruction guide provided when installing product, for damage due to improper installation is not covered under the warranty, although GLA will happily provide support and service for the product at a determined repair cost.

Customer Reviews

39 reviews

  • 5

    Sweet system from GLA.

    This was way more than I had bargained for. Very nice complete system. GLA is a stand up company and you can tell in the delivery experience alone. The regulator is beautifully made and very easy installation, 2-3 minutes? Very high quality I have no doubt will last a lifetime, I love it!

  • 5

    Wonderful bargain from GLA.

    We chose this our our first co2 system and could not be happier. We were intimidated, but the installation instructions and video had us up and running in only a few minutes. Its been wonderful watching our tank mature into full growth.:)

  • 5

    Must have

    Excellent equipment a must have to planted aqua scape . Easy to put together and arrived well packaged in the box. Highly recommended

  • 5

    GLA co2 systems unquestionably the way to go.

    Long time customer of GLA and own a variety of co2 systems. I’ve had this kit 11 months now and it’s been terrific, absolutely problem free. I personally just started using mine without the bubble counter. It’s cool needle valve is designed to also accept a direct tubing attachment. My bubble rate is far to high to use a bubble counter so this really appealed to me. This system will outlast my lifetime and my family’s for that matter.

  • 5

    Huge upgrade!

    Such a blessing, replacing my old system of several years and things have been growing really well. I dont have to fool with it any. I plugged ours into our bluetooth timer system and I can control the co2 with my phone! How cool is that?!

  • 5

    GLA is the best

    We are absolutely thrilled with this system. Our 150g garden tanks plants have doubled in size. We decided to add GLA PPS-Pro fertilizers as well and growth has been tremendous. GLA is an American company thats been an extreme pleasure to work with and learn from.

  • 5

    Planted aquarium co2 system at a bargain price.

    I like this system because it is compact and still has everything anybody would ever need. This system will work on any aquarium size and not cost huge size. Its been working great and super happy:)

  • 5

    Lovely co2 system for the price.

    We shopped around for a while wanting something affordable and with quality to back it. This kept coming back as our one to buy every time we looked elsewhere. GLA has a wealth of co2 knowledge going back almost 20 years. They helped us choose this system and also helped us install it when we had general questions. We were intimidated by the whole process but GLA assured us its a walk in the park. And it was. They made it painless and my tank could not be happier. My kids love it! Now Im the cool mom on the block lol.

  • 5

    Superb co2 system but you need a co2 diffuser!

    Absolutely pleased with this GLA co2 system. We were on a budget and this checked all the boxes. It arrived quickly as we were eagerly waiting, only 2 days! The packaging was very high quality and packed with care. Our first impressions were how nice everything was for the cost. It just seams in todays world at this price you expect much less, we got so much instead. It only took my husband about 9 minutes to get installed and running. He said it was effortless because the instructions are very very clear. You guys deserve more stars, so happy we found GLA.

  • 5

    GLA is the best!

    We are loving our new co2 system. Our planted tank lives in our foyer so everybody sees it! The GLA Gro co2 system installed easily and our plants having been looking wonderful. I cant thank GLA enough for the extra support for us noobs. GLA has been absolutely wonderful.

  • 5

    Great co2 system good price!

    Very nice and looks fantastic. My bubble rate is always steady and no need to fool around with it. So pretty

  • 5

    Perfect and well made.

    I was not expecting what I received in the mail yesterday. GLA made an absolute awesome co2 system at a great price. So happy!

  • 5

    Absolutely love this co2 system.

    Was my first co2 system and could not be more pleased. Fast shipping(free lol) and the system was of stellar quality through and through. Packing was beautifully done. Thank you GLA for making this so easy for us!

  • 5

    So nice I bought it twice

    I’ve been running this same setup on my 50 gallon for a little over a year now. It has worked so effortlessly that when setting up my 20g tank, I decided to buy the same one again. Highly recommended.

  • 5

    I own 3 of these, and love all of them.

    Always a pleasure with GLA.

  • 5

    A complete co2 system for any aquarium size.

    Im on my 3rd Gro and all 3 of my tanks are various sizes. What I like the best is you can use this on any cylinder available. To me thats the best in flexibility. It feels very heavy duty and stays set where you set it. Smooth operation through and through.

  • 5

    Aquarium co2 system made easy.

    I wanted a system that was compact and easy to install into my Waterbox aquarium system. I added an inline reactor and its been a complete upgrade for my plants. They are now growing as they should. I would give more stars if they were available.

  • 5

    Aquarium co2 system easy to install.

    Being my first co2 system I was a little intimidated. I wanted something easy to install and this was precisely that. I was able to get up and going in about 10 minutes. Its only been a couple months but the plants are happy. I was not doing so well prior to this using diy co2. Excited to try GLA ferts out tomorrow.

  • 5

    Premium aquascaping supplies.

    Just took delivery of my new Waterbox aquarium. We needed all the guts to go inside the tank and GLA pulled through with flying colors. They helped us every step of the way and did not mind our millions of questions. Our co2 system is up and running and feeding our beautiful aquarium plants.

  • 5

    Complete aquarium co2 system.

    Pumped I ran into GLA online. Service was tremendous and the help was priceless. The system comes with everything you need except the diffuser. So be sure to pick one of appropriate size. I love how they have everything in one button, and all the extra parts you require for your specific needs. My needs were very specific because I wanted a system to work with my 60g rimless cube. The Gro Co2 system fit the bill perfectly. Setup was a breeze with the provided instructions and video. You cant quite ask for more, GLA has you covered. Happy customer for life.

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