Description
GLA DS-Mini Dual Stage CO2 System (Modular)
The GLA DS-Mini Dual Stage CO2 System is a compact, professional-grade solution designed for planted aquariums where space, precision, and reliability matter. Built around our dual-stage regulator platform, it delivers stable CO2 output without pressure fluctuations, even as your cylinder empties.
Combining premium performance with a space-efficient footprint, the DS-Mini is ideal for aquarists who want the benefits of a dual-stage system in a smaller, space-efficient design.
Who This Is For
- Planted aquarium hobbyists seeking premium performance in a compact setup
- Small to medium aquariums
- Users who want dual-stage stability without a full-size regulator
If you want professional CO2 control in a streamlined, space-saving system, the DS-Mini is the ideal solution.
What’s Included
- GLA DS-Mini Dual Stage CO2 Regulator with modular manifold (1 block, expandable)
- 5 lb aluminum CO2 cylinder (ships empty)
- CO2-resistant aquarium tubing (10 feet)
- GLA OEM CO2 tank seal
Why Dual Stage Matters
Dual-stage regulators reduce CO2 pressure in two steps, eliminating fluctuations as the cylinder empties. This prevents “end-of-tank dump” and ensures stable, consistent CO2 delivery from full to empty.
- No end-of-tank pressure spikes
- Stable working pressure throughout cylinder life
- Improved reliability for planted aquariums
Compact Dual Stage Design
The DS-Mini is engineered for aquarists who need high performance in a smaller footprint. Its compact design makes it ideal for tight installations while maintaining the stability and precision of a full dual-stage system.
- Space-efficient regulator design
- Ideal for cabinets and smaller installations
- Maintains professional-grade CO2 performance
Modular Manifold System
The DS-Mini includes a single-block manifold for one aquarium and can be expanded with additional blocks as your system grows.
- Single aquarium setup (expandable)
- Add blocks for multi-tank CO2 distribution
- Independent control for each aquarium
How the Manifold System Works:
- 1 Block → 1 Aquarium
- 2 Blocks → 2 Aquariums
- 3 Blocks → 3 Aquariums
- 4+ Blocks → Expand as needed
Each block provides independent CO2 control for each aquarium.
Key Features
- Compact Dual Stage Regulator: Stable CO2 delivery in a smaller form factor
- Modular Manifold: Expandable CO2 distribution system
- Precision Needle Valve: Fine-tune CO2 output
- Integrated Solenoid: Automates CO2 on/off
- Dual Gauges: Monitor tank and working pressure
- Premium Construction: Built with high-quality pneumatic components
Performance & Design
- Laser precision metal-on-metal valve seat
- Integrated pressure relief valve (PRV)
- Pressure tested and leak checked prior to shipment
- Engineered to meet GLA performance standards and tested to ensure consistent, dependable operation.
Important Notes
- CO2 cylinder ships empty and must be filled locally
- A diffuser or reactor is required for CO2 delivery (sold separately)
- Additional manifold blocks can be added for multi-tank setups
Specifications
- Installation: CGA-320 (USA standard CO2 cylinders)
- Pressure Reduction: Dual Stage
- Output Pressure Range: 0–60 PSI
- CO2 Distribution: Single aquarium (expandable)
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
What makes the DS-Mini different from the PRO-DS?
The DS-Mini offers dual-stage performance in a more compact design. The PRO-DS is larger and designed for higher capacity and larger multi-tank systems.
Can this run multiple aquariums?
Yes. The DS-Mini includes one output but can be expanded with additional manifold blocks.
Is this suitable for beginners?
Yes. While it offers professional performance, it is simple to operate and suitable for both beginners and advanced users.
Does the CO2 tank come filled?
No. The cylinder ships empty and must be filled locally.
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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First time CO2 user
First part of this review will cover the actual setup and functionality of this, second part will be my overall experience as a first time CO2 user. This was incredibly simple and straightforward to setup and configure. The instructions had a link to a video that walks you through each step of the process which was helpful. It took less than 20 minutes to setup, and that is with me reading and rereading everything since it was my first time ever working with CO2. Bonus points that it looks really cool, I love showing it to my friends. It works very well of course, I have nothing but praise here, it was well worth the money and I am recommending this exact setup to some friends in the hobby who are intimidated by CO2 like I was. Secondly, as a person who has been in the hobby for 4 years but incredibly intimidated by everything about CO2, I am beyond grateful to have found GLA. They simplified the entire process in every way. I only had to buy 3 things for my entire setup, which were this, a diffuser and a drop checker. I was so confused on what to buy, and was able to connect to a human here via text to ask every question, which they responded to promptly and kindly. They assured me that they will guide me as needed to ensure my success. I took the leap, bought the products, and was able to set everything up properly with ease with the instruction manual and video. I am confident that if I ever have issues or questions, that they will help me in any way I need. The difference that CO2 makes in the tank with the plants was evident the next day. My rotala began to develop a beautiful red color which deepens each day. A week in, my dwarf hair-grass is popping up everywhere and spreading. Dwarf baby tears are thicker and a more vibrant green. I will always use CO2 from now on and I am so thankful for GLA for enabling me to finally take this step in my favorite hobby. Now I can spread the knowledge around to my friends and help them get going on CO2 finally too.
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We are thrilled with this system from GLA
We love it, very high quality and fantastic customer support.
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Superb quality and service.
Well made co2 system completing my aquascape for this year. This is one slick co2 system you will not find anywhere else. Only GLA makes them like this. I own a couple GLA regulators over the decades and they are all still in use. Cant go wrong with GLA.
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This is a top quality co2 system.
Wonderful support from GLA and more happy to write this review. Very happy with my purchase and the support from GLA. This system was a snap to install and I want to point out how nicely made it was. Its also super compact and is rich in features I plan to utilize in the future. Well made and designed by GLA.
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Big time value and quality from a GLA system.
I chose this GLA system because of two reasons, features and price. The only thing this is missing is the tank pressure gauge. GLA advised how this works and its been flawless. I should say there is a 3rd reason I chose this version. I do not use a bubble counter and can fit a 5lb cylinder under my cabinet with 1" to spare. GLA systems are desinged to also work without bubble counters and its wonderful. Fits perfect, very smooth controls and simple to operate. GLA customer service was second to none.
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Very high quality system at a great price.
After shopping and emailing all over we settled on the Mini DS system. We are so glad we did because we got a chance to see a few competitor systems in our LFS in Orlando. The GLA systems are much higher quality and a better bargain. It only took a few minutes to install and by the next day our tank was pearling wonderfully:)
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Super fantastic co2 system.
So glad I found GLA, I learned so much about co2 systems before contacting GLA. I was able to see they go back decades in the co2 game. I reached out for some final questions after weeks of reading about all the different makes and models. I decided to go with GLA and Im glad I did. This is a very good deal on the system, but you still need a co2 diffuser. I will be using a GLA reactor so I was ready to go as Im still building out this system. This mini is going to supply my 280g aquarium. I should note I added an extra manifold so I could feed two reactors. This system is built around the world famous modular manifold. Pioneered by GLA. GLA has so many high end products that others dont offer except ADA. GLA is a step above in co2 systems and especially the aquascaping tools. Oh my gosh thats a whole other review. Buy with confidence from GLA is my story, these guys are the real deal and it shows.
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Fantastic build quality with GLA!
Loving this new dual stage co2 regulator from GLA. I have the full sized version on another tank and wanted this for our in-wall display tank in the living room. Very well made, very smooth sailing installation and its been rock steady everyday.
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Compact CO2 regulator
I am new to CO2 injection. I picked this unit for its compact designed. I opted for adding a 2nd bubbler module. I am pleased with the set up so far. Components seem very solidly made. Set up was not too tough even for a newly like me. The videos were necessary and very helpful. I had a leak, which I was able to diagnose and fix. There were lots of extra parts included in the package. I managed to lose a seal for the 2nd bubbler but the package had a couple extras. So far so good with the whole set up!
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Great product and great service
My original order never made it to my house. I went out of town and my roommate didn’t tell me until weeks later what happened. This made the claims process with UPS very drawn out. It took several months for them to finish the investigation and I still haven’t been delivered the partial refund they told me they would. In the meantime everyone I talked to at GLA was really understanding about the process and kept me informed the best they could. They very kindly offered store credit and I placed my order again. I’ve had it set up for a few weeks, and it works beautifully and smoothly. The online videos make set up so easy. Would definitely buy from here again.
