Description
GLA DS-Mini Dual Stage CO2 Regulator (Modular Manifold)
The GLA DS-Mini Dual Stage CO2 Regulator is a compact, professional-grade solution designed for planted aquariums where space, precision, and reliability matter. Built with a dual-stage design, it delivers stable CO2 output without the pressure fluctuations commonly found in single-stage regulators.
Engineered for flexibility, the DS-Mini features a modular manifold system that allows expansion across multiple aquariums while maintaining independent control of each line.
Who This Is For
- Planted aquarium hobbyists seeking compact, high-performance CO2 control
- Small to medium aquariums
- Users who want dual-stage stability in a space-efficient design
If you want professional CO2 performance in a smaller footprint, the DS-Mini is the ideal solution.
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 to deliver professional performance in a compact form factor. Its smaller size makes it ideal for tight installations while maintaining the stability of a full dual-stage system.
- Compact, space-saving regulator design
- Ideal for aquarium cabinets and smaller setups
- Professional-grade CO2 performance
Modular Manifold System
The DS-Mini can be configured with up to six manifold blocks, allowing you to distribute CO2 to multiple aquariums from a single regulator.
- Expandable from single tank to multi-tank setups
- One block per aquarium
- Independent needle valve control for each tank
- Clean, scalable CO2 system design
How the Manifold System Works:
- 1 Block → 1 Aquarium
- 2 Blocks → 2 Aquariums
- 3 Blocks → 3 Aquariums
- 4–6 Blocks → Full multi-tank distribution
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 multi-aquarium capability
- Precision Needle Valve: Fine-tune CO2 output
- Integrated Solenoid: Automates CO2 on/off
- Single Gauge: Monitor 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.
Specifications
- Installation: CGA-320 (USA standard CO2 cylinders)
- Pressure Reduction: Dual Stage
- Working Pressure Range: 0–60 PSI
- CO2 Distribution: Up to 6 aquariums (modular)
What’s Included
- GLA DS-Mini Dual Stage CO2 Regulator (modular manifold configuration as selected)
- GLA OEM CO2 tank seal
The GLA DS-Mini regulator is designed for aquarists who want space-efficient design, scalability, and professional-grade CO2 performance in a single solution.
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 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 can be expanded with additional manifold blocks, with one block per aquarium.
Is this better than a single-stage regulator?
Yes. Dual-stage regulators provide stable pressure and eliminate end-of-tank dump, making them more reliable for planted aquariums.
Can I expand later?
Yes. Additional manifold blocks can be added as your system grows.
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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Best regulator. Phenomenal customer service
Can't recommend this regulator and company enough. Was new to the CO2 game. Customer service didn't try to upsell and thoroughly answered all of my questions. This thing is built tough and works like a dream. Basically just set it and forget it
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This is the best budget priced dual stage co2 regulator.
I spent decent amount of money on a crummy Co2art regulator everybody talks about. I don’t think anybody knows what they are talking about after having this up and flowing for 3 weeks. GLA co2 regulators are a major upgrade in comparison. This solenoid and manifold system is leaps and bounds what co2art is putting out for a premium price. I like this expandable manifold and butter smooth needle valve system. I took the whole manifold apart to see if GLA’s claims to valve construction are true. And indeed they are, fully sealed metal on metal valve seats throughout the whole valve. This is what makes it so damn smooth, no plastics and no fluctuations within the orifice map. GLA does it right and that’s what they’re known for.
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Very happy having chose the Mini DS
I was on a slight budget for my co2 system and wanted the Pro DS. But by going this route I was able to use the extra $50 on a drop checker,tubing and a diffuser. Now that it’s set up I’m highly impressed with this system. I like the dual stage aspect and quality of the regulator and solenoid system with the manifold. You can feel the quality in your hands when compared to Fzone. Which reminds me, fair warning on Fzone because my old one didn’t last 3 months. The needle valve knob fell off and the fluctuations were crazy day to day. I have had none of these issues in the 4 weeks I’ve owned this Mini DS. It’s solid everyday and it’s just so pretty, very nice finish to the whole assembly. Thank you GLA for answering all my questions because I asked a ton of questions and they were very patient. Fabulous people at GLA.
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DS-mini regulator and support
Being brand new to co2 I ended up ordering this after reading a lot of reviews, and knowing that with my current schedule and being gone long hours, I didn't want to start out feeling concerned about needing to tweak and constantly monitor and worry about the levels, as I was introducing it to an established aquarium with lots of inhabitants. I had read that GLA is one of the best in the market, and decided to spend a little extra because I was fortunate enough to be able to, and also it seemed worth the ease. Well, being brand new to this with no previous experience when I first set it up it didn't seem to be working right, and I was worried that it was either messed up or I had inadvertently messed something up in the installation process. However, once I was able to get in touch with the GLA support team, David walked me through a real time emailed/text troubleshooting session and was able to pinpoint the issues. Its now set up, on a timer, and I am getting stable co2 readings (at least from the drop checker), and not worried about the fish. The DS Mini also fits really well in the tight corner space I have at the base of the stairs for the tank, and looks about as classy as one of these things could look. I would definitely recommend this regulator and GLA for their awesome customer support!
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So glad I chose this one!
I was having a hard time deciding with all the options. With help from GLA abd a few days of thinking I chose the Mini DS. I wanted dual stage and a compact regulator to go with a 2.5lb cylinder. This was going to sit behind my tank. But! Because it was so nice I decided to put it to the side, looks too good! Functions beautifully is absolutely stable everyday. Love its construction and finish. If you’re on the fence and can’t decide the Mini is the happy middle!
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Compact and loving the modern look.
Very happy with this HLA regulator. It’s very modern and compact but obviously not limited because it’s feeding co2 to my 700g room dividing tank. Very high quality construction and materials. I must say, the customer service is unbelievable and always reliable. They have some text message app service that’s completely mind blowing. Besides all that I can’t say enough about the staff and quality products I’ve received from GLA, I absolutely love this regulator.
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Truly remarkable regulator.
I come from DIY dual stage regulators which are extremely large and heavy for aquarium applications. I’ve had my personal build well into 15 years until last month, not even sure what happened it just wouldn’t hold pressure. I saw a bunch of GLA regulators at Aquashella and was very impressed with this Mini DS piston style regulator. Upon speaking with the rep at the show this is a Matheson design, which is highly coveted for its extreme precision and stability. So much in a compact package had me intrigued so I purchased one and is now installed. Dual stage reliability and a needle valve so smooth and precise like my Swagelock valve. I give big kudos to GLA for thinking of all the important aspects of what we as hobbyist look for. The manifold system they created is the icing on the cake. GLA is a good group of guys doing what they love. Pleasure meeting you all at the show!
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My second GLA regulator and I love it.
I already have the Pro DS but I have a new tank in my basement bar set up now. This is nice because it’s compact and squeezes in next to my existing beer keg co2 system that’s slightly bigger, so it fits perfect. It is one buttery smooth regulator that is easy to get set and forget. High quality from end to end so absolutely no complaints.
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GLA is bomber proof co2 gear.
This thing is awesome and perfect fit for the GLA 2.5lb cylinder. Fits under my nano like a glove. Super nice regulator and very precise in co2 delivery.
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Its sweet!
Love it! Very nice build quality, was up and running in a few minutes. Very modern design that looks sleek in my small cabinet space. Thanks GLA!
