Questions? Feedback? powered by Olark live chat software

Free GLA Substrate Fertilizer Capsules - promotion added to cart with orders $250+


In Stock

GLA GRO Paintball Aquarium CO2 Regulator

29 reviews Write a Review
GLA GRO Paintball Aquarium CO2 Regulator
GLA GRO Paintball Aquarium CO2 Regulator
GLA GRO Paintball Aquarium CO2 Regulator
GLA GRO Paintball Aquarium CO2 Regulator
GLA GRO Paintball Aquarium CO2 Regulator
GLA GRO Paintball Aquarium CO2 Regulator
Current Stock:






Pressure Reduction



CO2 Distribution


GLA GRO Paintball Planted Aquarium CO2 Regulator

Our GLA GRO Paintball CO2 regulator is a compact and sleek, high performance everyday paintball CO2 regulator for single aquarium installation. The GLA GRO Paintball 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: Paintball
  • 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

29 reviews

  • 5

    Bad ass!

    GLA makes a bad ass regulator and I love it!

  • 5

    Excellent Regulator!

    I was using a UNS paintball regulator kit, which was absolute garbage and stopped working after only one week (not to mention the eye-watering price). I decided to return it to the store and buy this one instead. Just upon opening the package I could tell it is a superior quality than my previous one. It's been a week now running and couldn't love it more! Would order again!

  • 5

    GLA is the go to for co2!

    Been a long time customer of GLA for 15 years now. GLA really knows how to execute an aquarium co2 system properly. All my systems are still running flawlessly after years of abuse.

  • 5

    Finally trouble free co2 for my aquarium.

    This being my now 3rd regulator my wife was none to pleased. I tried for two years using a UNS and another Amazon version on my paintball cylinders and none would hold a seal for more than 45-60 days. I think it’s because those UNS versions seem real dinky, and not to sturdy. When I took this GLA paintball co2 regulator out it felt twice as heavy, more substantial. Not only that but I now get 4 months on a paintball cylinder, nearly twice as long. The needle valve on this is also very easy to tune. I’m living GLA co2 regulators.

  • 5

    Highly recommend this paintball regulator.

    Now my 3rd paintball regulator. I tried 2 UNS paintball regulators and both failed doing the same thing. They warrantied my first one, second one arrived and instantly was not able to set a normal bubble rate. I dont have a huge tank so this should have been easy. Thankfully I went to GLA and received this. My god, so easy. My bubble rate was rock steady day one and every day. Ok, I can live with this!

  • 5

    Beautiful workhorse.

    Very good price and super good quality. Today I come to buy another one for my fish room. Very neat packaging by thew way. I like the artwork lol Installation with this is super easy and I like most that if I want to upgrade one day to full size cylinder I can no problem with the same regulator. Bonus!

  • 5

    Good quality and solid build

    I bought this regulator after comparing it to other great options out there (UNS Mini, Co2 Art, etc) and found out that the price and the features were very attractive. Even though this is a single stage vs the other options, the GRO's natural decay and rise effect is extremely minimal which alleviates my concern regarding "end of tank dump". Extremely happy with my purchase.

  • 5

    Best paintball regulator I’ve used.

    I can only use paintball where I live and this is one exceptional paintball co2 regulator. It’s built well and very heavy duty. My co2 is super stable and and no longer mess with my needle valve. Love this regulator I’d give it 10 stars ⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️⭐️

  • 5

    Love this paintball regulator.

    So neat and simple to use. It is a very sturdy feeling piece. Adjsuting the co2 into my Beta tank was much simpler than I thought. Very happy with everything I would certainly buy again. Except next time Im going with the 5Lb cylinder.

  • 5

    Great build quality.

    Great paintball regulator. I needed a compact regulator and this fit the bill. Needle valve is super precise and much easier to use. Even the art work on the packaging was cool lol :)

  • 5

    Compact co2 regulator.

    I like this regulator because it fits on my counter top. The main reason I went with this is because its compatible with all cylinder types. When Im ready for full size I just get the GLA adapter. GLA has been terrific.

  • 5

    Love this paintball regulator.

    I needed a compact regulator to fit my space. This fit the bill perfectly. Not only that I really liked the fact I can use this on any cylinder type available using GLA's adapter. The installation was only 2 minutes and dialing in the bubble rate was a breeze. Once I notice the gauge start to drop that tells me its time to change cylinders. Love it.

  • 5

    Regulators and other items.

    Top notch regular. If fact everything I have ever purchased from Green Leaf Aquariums has been of the highest quality you can expect. Have never been disappointed with anything I have purchase from them.

  • 5

    Wonderful Regulator

    I couldn't be happier with my GLA GRO Paintball Regulator. Its precise and consistent, maintaining the bubble count even after restarting each morning. Its small size makes it super convenient to hide, although I prefer to show mine off due to its high quality. I'll will certainly continue to use GLA regulators for my future tanks.

  • 5

    Worth every penny! When you read the instructions lol

    Thankfully I used the brain cells I have left and followed GLA's basic instructions on how to use the diffusers. Works amazingly well when you actually follow instructions.

  • 5

    Gro paintball aquarium co2 regulator

    This is a must have, especially for those with a smaller tank with limited space. This regulator’s assembly is excellent, reliable and has a small profile which makes it easy to hide.

  • 5

    You get what you pay for.

    Really well made and worth every penny. Don’t cheap out on a regulator. It’s important and you won’t be made AT ALL with this one. Really fast shipping to. Like really fast!!!

  • 5

    Easy to use, high quality

    I'm very happy with this regulator. It sealed right onto the paintball canister, no leaks. Everything feels solid and well built. It's also very easy to adjust. Both the regulator and needle valve have plenty of degrees of rotation so I can dial in both pressure and bubble count. The solenoid only gets mildly warm; it's not even uncomfortable to touch. I would recommend this without hesitation for anyone looking for a compact CO2 system.

  • 5

    Perfect Paintball regulator

    I ordered 4 of these regulators, for 4 different aquariums. Since I had limited storage space the best solution for me was to use 24oz paintball cylinders and GLA GRO regulators. Everything fits perfectly! Any other kind of regulator would have been too tall. I've ordered many products from Green Leaf and they are all exceptional in quality, as is the communication and attention to detail!

  • 5

    Reliable and Well - Built

    I had been searching for the sweet spot in terms of CO2 injection in my tank. I have tried a cup diffuser, which proved to be problematic given the length of the tank with the lily outflow I was using. Also gave a shot to different regulators that just didn't cut it. Enter Orlando and team who kindly walked me through the many nuances of a regulator. I took the plunge, picked this bad boy up, and was pleasantly surprised with the result and stability. Regulators are a primary key in your CO2 injected system, and you might save a few bucks elsewhere, but you just can't go wrong with a quality build from GLA. Couple that with the excellent support and Warranty, and you have yourself a winner. Spend the extra $$ and get it right the first time. Save yourself the headache of searching for different things that "might work" and get something that will not only work well but last!

Customers Also Viewed

Atomic CO2 Diffuser - 50mm

Atomic CO2 Diffuser - 50mm

Featuring the world's finest and highest CO2 diffusion rate, our Atomic CO2 diffuser creates supreme diffusion of CO2 in aquarium water. CO2 is capable of 100% dissolution in the aquarium water...
Atomic Check Valve - Inline Check Valve

Atomic Check Valve - Inline Check Valve

Atomic series check valve with super low 1psi cracking/opening pressure. Permits flow of CO2 in one direction only. Mount inline. Compatible with our CO2 resistant tubing. Easy view arrow marks the...
Atomic Inline CO2 Diffuser - 16/22mm

Atomic Inline CO2 Diffuser - 16/22mm

Featuring the world's finest and highest CO2 diffusion rate, our Atomic CO2 diffuser creates supreme diffusion of CO2 in aquarium water. CO2 is capable of 100% dissolution in the aquarium water...

Join the List