Description
GLA PRO-CO2 Reactor 5L – High-Efficiency CO2 Dissolution for Planted Aquariums
The GLA PRO-CO2 Reactor 5L is designed for high-efficiency CO2 dissolution in demanding planted aquarium systems. Built for high-tech aquascapes and larger planted aquariums, this reactor helps deliver stable, consistent CO2 saturation with minimal gas waste.
Key Features:
- 5L High-Capacity Reactor Chamber: Designed for high-flow filtration systems while maintaining stable CO2 saturation throughout the aquarium.
- Professional Acrylic Construction: Crystal-clear acrylic body designed for durability and long-term performance (19" tall × 6" diameter).
- Whirlpool Diffusion System: Internal vortex chamber promotes efficient CO2 mixing and dissolution before water returns to the aquarium.
- Universal Tubing Compatibility: Supports 12/16mm, 16/22mm, and 20/25mm tubing for compatibility with most canister filters and external pumps.
- Quiet, Bubble-Free Operation: Reduces visible microbubbles and CO2 noise commonly associated with traditional diffusers.
- Efficient CO2 Utilization: Helps reduce CO2 loss while improving overall system stability.
- Maintenance-Friendly Design: Wide body and removable top allow easier cleaning and access to internal components.
Installation & Functionality:
- Install the reactor inline with your canister filter return/output line.
- Connect CO2 tubing using the integrated Speedfit connection with built-in on/off valve.
- The internal vortex chamber creates a high-flow mixing environment that improves CO2 dissolution efficiency.
- Adjust CO2 injection according to the needs of your planted aquarium.
Why Choose a CO2 Reactor?
- Improved CO2 Dissolution: Efficient CO2 absorption with reduced gas waste.
- Ideal for Larger Aquariums: Well-suited for medium to large planted aquariums where higher CO2 demand exists.
- Cleaner Display Appearance: Inline reactor design minimizes visible equipment and microbubbles inside the aquarium.
- No Additional Power Required: Operates using existing filtration flow.
The GLA PRO-CO2 Reactor 5L is designed for aquascapers seeking stable, efficient CO2 delivery in larger planted aquarium systems.
Customer Reviews
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GLA the best in co2 equipment.
I use GLA equipment for years and never a problem. GLA customer support always very kind and supportive anytime I have a question on anything. Really love their text-message support system which was just incredible at my success with my aquascape. This will be my 2nd time entering IAPLC contest and already feeling positive. Love this reactor.
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Absolutely love it ?!
Best co2 reactor for planted tanks. Many trials and errors for me and co2 reactors until now. I have 3 reactors now in a junk pile after constant adjusting I just could not manage. This reactor took me 2.5 days to get dialed in, and it’s perfect now. This reactor is big time volume which I really like and it’s likely the culprit of the success with its huge volume, but I don’t know. It’s built extremely well of high quality material and I have no doubt this will be my favorite method of diffusion.
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❤️Absolutely love this co2 reactor.
Coming from a smaller competing brand this thing blows every other reactor away in construction and overall performance. Zero co2 escapes this thing unlike the other brand I invested in. Whats even better is its quality, it’s built better from top to bottom and much larger in volume, in fact it’s huge and bigger than my co2 system. Tank drops a full 1.5ph in short time and pearls like crazy before my lights are out. GLA always brings top quality planted aquarium products.
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Beast of a co2 reactor, I mean it’s huge.
I come from a long history of using co2 reactors. My first one was from GLA about 16 years ago when they made large PVC reactors. I actually still have it in service today. Years later I adopted an Aquariumplants.com reactor which is basically a Cerges reactor. That was close to a nightmare to get dialed in and hated that stupid internal pump they implemented. I then purchased the plastic reactor GLA use to have listed on their site but appears to be no longer available. I actually like that one a lot except it’s to small in volume. Fast forward to now I have this giant reactor. It’s absolutely perfect. It’s build extremely well and the volume it has is exactly what I prefer. It handles a big co2 flow rate and no co2 is able to escape. It’s bigger than my actual co2 system, it’s that big. Always loved GLA products because they bring quality stuff that delivers. Customer service is second to none.
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Changed my Dutch scape into an absolute garden.
This co2 reactor completely changed my plant beds. I’ve struggled for months trying to get stable co2 in this tank. It’s a 75g with a 30g sump so I was always making adjustments and almost gave up. I’ve had this installed now for 3 weeks and it’s been such a blessing. I'm more hands off now and spend more time now figuring out my fert dosage. Trimming,dosing and maintenance are all I do, I no longer mess with my co2 system. Plants look fantastic and I’m now making a little money back selling my plant clippings on Facebook and forum pages.
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This is a quality built co2 reactor I’ve been looking for.
I bought two of these for my two aquascapes. One uses an Eheim 2262 and the other uses an Eheim Pro. I like that this reactor comes with several sets of hose connectors. I didn’t have to glue any adapters or make any modifications. Everything came ready out of the box including a whole roll of Teflon tape. The volume of this reactor is massive, much larger than competing brands so it’s able to hold up well for my 220g tank using the big Eheim 2262. After about 3 days of adjusting my co2 bubble rate I have a nice 1.3 ph drop in short time. Nice and gradual and not stupid fast where it can stress my fish. On my 120g tank with the Eheim Pro I get the same exact outcome. Except this tank is half the volume so I use much less co2. I’ve used a competing brand of GLA’s reactor that was smaller and wasted co2, co2 was actually escaping the reactor. To me that’s a failed design. No co2 should ever escape a co2 reactor. If it does , you clearly have a failed design. With this large format reactor from GLA NOT A SINGLE BUBBLE ESCAPES. Because of this I rated it 5 stars ⭐️ because it’s a quality built unit and does what it’s supposed to do without wasting a single bubble of co2. Thank you GLA staff for helping me and bringing us a great product.
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GLA PRO-CO2 Reactor 5L
GREAT QUALITY REACTOR,NO NOISE,NO LEAK,DISSOLVES 100% OF CO2,VERY HAPPY.
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Totally transformed my tank.
Not new to reactors but new to GLA’s co2 reactor. This is an absolute beast and does the job very well. I trim stem plants every few days now and have been replanting like crazy. Totally worth the investment.
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My first time with a co2 reactor and absolutely love ❤️ it!
I’ve only used co2 diffusers the last 2-3 years and while they’ve been great I never was a huge fan of all the billions of micro bubbles. I took the plunge this month on this reactor and it’s been just wonderful. My co2 levels are perfect and keeps my drop checker in the yellow zone lol, yeah I know but my fish don’t mind and my plants have never pearled as much as they do now. Great product and even better customer service, they are just so kind. :)
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This is the co2 reactor.
I’ve tried a few co2 reactors and this thing blows them away. It’s huge, let’s say that first. Second, zero co2 escapes this reactor so every bubble you inject gets saturated. If you’re new to using a co2 reactor know there’s a 2-4 day tune in time. It takes you a few days to get your co2 levels perfect. And when you do they are absolutely perfect. I built a raspberry pi pH controller to monitor my GLA CO2 System and my data log reports are rock steady for my co2. I love this thing it’s been an absolute dreamy unit.
