Description
GLA MINI-DS Dual Stage CO2 System (Modular)
The GLA MINI-DS Dual Stage CO2 System combines compact dual-stage pressure regulation, modular CO2 distribution, a refillable aluminum CO2 cylinder, and CO2-resistant tubing in one configurable planted aquarium CO2 package.
Designed for aquarists who want the pressure-regulation benefits of a dual-stage system without the larger footprint of the PRO-DS platform, the DS-Mini provides precise CO2 control in a compact, scalable configuration. Select from one to six independently controlled manifold outputs and one or two 5 lb aluminum CO2 cylinders to configure the system for your installation.
Each DS-Mini regulator is individually inspected, pressure tested, and leak checked in the USA prior to shipment.
At a Glance
- Pressure Regulation: Dual-stage
- Cylinder Connection: CGA-320 standard USA CO2 cylinders
- Included Cylinder: 5 lb aluminum CO2 cylinder; one- or two-cylinder package selectable at purchase
- Pressure Monitoring: Integrated working-pressure gauge
- Output Pressure Range: 0–60 PSI
- CO2 Distribution: Selectable 1–6 aquarium modular configuration
- Independent Control: Precision needle valve and bubble counter for each manifold output
- Automation: Integrated electric solenoid
- Tubing: 10 feet of CO2-resistant aquarium tubing
- Warranty: GLA Limited Lifetime Warranty on the regulator
Best For
- Aquarists seeking compact dual-stage CO2 regulation
- Single planted aquariums with future expansion in mind
- Multi-aquarium CO2 installations
- Installations where cabinet space and equipment footprint are important
- Hobbyists who want independently adjustable CO2 outputs
- Beginner and experienced aquarists seeking a scalable pressurized CO2 system
- Planted aquariums using diffusers, inline atomizers, or CO2 reactors
The DS-Mini is not limited to a particular aquarium size. Appropriate CO2 delivery depends on plant demand, lighting, circulation, diffusion method, surface agitation, and overall system configuration.
Why Choose the GLA DS-Mini CO2 System?
The DS-Mini CO2 System combines the compact footprint of the DS-Mini regulator with dual-stage pressure regulation, modular CO2 distribution, and the core components needed to establish a refillable pressurized CO2 installation.
- Compact Dual-Stage Architecture: Two-stage pressure regulation in a space-efficient platform
- Configurable Modular Manifold: Select from one to six independently controlled aquarium outputs
- Precision CO2 Adjustment: Each manifold output includes its own precision needle valve
- Integrated Flow Monitoring: Each manifold output includes a bubble counter for convenient visual CO2 monitoring
- Automatic Operation: Integrated solenoid allows CO2 injection to be controlled using a timer or compatible controller
- Working-Pressure Monitoring: Integrated gauge provides a clear reference for regulator output pressure
- System Protection: Integrated pressure relief valve provides an additional level of protection
- Refillable Cylinder: Includes one or two 5 lb aluminum CGA-320 CO2 cylinders depending on the selected package
Compact Dual-Stage Pressure Regulation
Dual-stage regulators reduce cylinder pressure through two separate pressure-reduction stages. This architecture is designed to provide increased working-pressure stability as cylinder pressure changes over time and to reduce the likelihood of pressure increases as the CO2 cylinder approaches depletion.
The DS-Mini provides these dual-stage pressure-regulation benefits in a compact form factor designed for planted aquarium installations where equipment space may be limited.
- Two-stage pressure reduction
- Stable and controllable working pressure
- Reduced likelihood of end-of-tank pressure spikes
- Compact architecture for space-conscious installations
Precision Control & Automation
Each DS-Mini manifold output includes an independently adjustable precision needle valve and integrated bubble counter, allowing CO2 flow to be tuned separately for each connected aquarium.
The integrated electric solenoid allows CO2 injection to be automatically coordinated with the aquarium photoperiod using a standard timer or compatible controller.
The DS-Mini uses a single gauge dedicated to regulator working pressure. Unlike the full-size PRO-DS platform, it does not include a separate cylinder-pressure gauge.
Bubble rate should be treated as an aquarium-specific reference rather than a universal measurement of dissolved CO2. Actual CO2 requirements vary with aquarium volume, plant mass, lighting, circulation, diffusion efficiency, and surface agitation.
Modular Manifold System
The DS-Mini CO2 System can be configured with one to six manifold blocks, allowing you to build the system around your current aquarium setup rather than purchasing more outputs than you need.
- DS-Mini-1: 1 independently controlled aquarium
- DS-Mini-2: 2 independently controlled aquariums
- DS-Mini-3: 3 independently controlled aquariums
- DS-Mini-4: 4 independently controlled aquariums
- DS-Mini-5: 5 independently controlled aquariums
- DS-Mini-6: 6 independently controlled aquariums
Each manifold block includes its own precision needle valve and integrated bubble counter, allowing every connected aquarium to be adjusted independently while sharing a single regulator and CO2 cylinder.
Compatible manifold blocks may also be added later if your system expands.
View GLA Modular Manifold Expansion Blocks
Refillable 5 lb Aluminum CO2 Cylinder
The DS-Mini CO2 System includes a refillable 5 lb aluminum CO2 cylinder with a standard CGA-320 connection. The cylinder ships empty and must be filled by a local CO2 or compressed-gas supplier before use.
One- and two-cylinder package options are available. Select the cylinder quantity that best fits your installation and CO2 supply needs when ordering.
Important: CO2 cylinders ship empty.
Engineering & Performance
- Dual-Stage Pressure Regulation: Two-stage architecture designed for increased working-pressure stability
- Laser-Precision Metal-on-Metal Valve Seat: Engineered for consistent regulation and long-term operation
- Precision Needle Valves: Independent fine adjustment for each manifold output
- Integrated Bubble Counters: Visual CO2 flow monitoring for each connected aquarium
- Integrated Working-Pressure Gauge: Provides a visual reference for regulator output pressure
- Integrated Pressure Relief Valve: Provides additional system protection
- Premium Pneumatic Components: Selected for precision, reliability, and long-term performance
- USA Inspection & Testing: Each regulator is pressure tested and leak checked prior to shipment
Specifications
- Installation: CGA-320 standard USA CO2 cylinders
- Pressure Reduction: Dual-stage
- Pressure Monitoring: Integrated working-pressure gauge
- Output Pressure Range: 0–60 PSI
- CO2 Distribution: Selectable 1–6 aquarium modular configuration
- Output Control: Independent precision needle valve for each manifold block
- Flow Monitoring: Integrated bubble counter for each manifold block
- Included Cylinder: 5 lb refillable aluminum CO2 cylinder
- Cylinder Quantity: One or two cylinders selectable at purchase
- Included Tubing: 10 feet of CO2-resistant aquarium tubing
What’s Included
- GLA DS-Mini Dual Stage CO2 Regulator
- Selected 1–6 block modular manifold configuration
- Precision needle valve for each selected manifold output
- Integrated bubble counter for each selected manifold output
- Integrated electric solenoid
- Integrated working-pressure gauge
- Selected quantity of 5 lb aluminum CO2 cylinders (ships empty)
- 10 feet of CO2-resistant aquarium tubing
- GLA OEM CO2 tank seal
Please Note: A compatible diffuser, inline atomizer, or CO2 reactor is required to deliver CO2 into the aquarium and is sold separately. The included CO2 cylinder ships empty and must be filled locally before use. For added protection against backflow, we recommend using a compatible inline check valve in your CO2 installation.
Frequently Asked Questions
Does the DS-Mini CO2 System include everything I need?
The system includes the DS-Mini regulator, selected modular manifold configuration, refillable CO2 cylinder, CO2-resistant tubing, and tank seal. You will also need a compatible diffuser, inline atomizer, or CO2 reactor to introduce CO2 into the aquarium. For added protection against backflow, we recommend using a compatible inline check valve in your CO2 installation.
Does the CO2 cylinder arrive filled?
No. CO2 cylinders ship empty and must be filled by a local CO2 or compressed-gas supplier before use.
Why are one- and two-cylinder options available?
The system can be ordered with either one or two 5 lb aluminum CO2 cylinders. Select the cylinder package that best fits your CO2 supply and installation needs.
What makes the DS-Mini different from the PRO-DS?
Both the DS-Mini and PRO-DS use dual-stage pressure regulation and modular manifold systems. The DS-Mini is designed around a more compact architecture with a 0–60 PSI output range and a single working-pressure gauge. The PRO-DS is GLA’s full-size dual-stage platform with a 0–140 PSI output range, separate cylinder and working-pressure gauges, and expanded capability for higher-pressure applications.
Can the DS-Mini run multiple aquariums?
Yes. The system can be configured with one to six manifold blocks. Each block provides one independently adjustable CO2 output with its own precision needle valve and bubble counter.
Can I expand the manifold later?
Yes. Compatible manifold blocks can be added as your aquarium system grows, up to the six-output configuration. When expanding an existing regulator, select the manifold generation that matches your regulator because G2 and G3 manifold blocks are not cross-compatible.
Does the DS-Mini monitor CO2 cylinder pressure?
No. The DS-Mini uses a single gauge to monitor regulator working pressure. Aquarists who prefer separate gauges for cylinder pressure and working pressure may consider the GLA PRO-DS platform.
Can I use a diffuser, inline atomizer, or CO2 reactor?
Yes. The adjustable 0–60 PSI output supports many planted aquarium CO2 delivery methods when operated within the pressure and flow requirements of the selected equipment.
What size aquarium can I use the DS-Mini on?
The DS-Mini is not restricted to a specific aquarium volume. Appropriate CO2 delivery depends on plant demand, lighting, circulation, diffusion method, surface agitation, and overall system configuration.
Is the DS-Mini suitable for beginners?
Yes. Dual-stage regulators are not inherently more difficult to operate during normal aquarium use. The DS-Mini is suitable for both beginner and experienced aquarists who want compact dual-stage pressure regulation and modular system flexibility.
Choosing the Right GLA CO2 Platform
The GLA GRO is our streamlined single-stage platform for aquarists seeking compact, precise CO2 control. The DS-Mini combines dual-stage pressure regulation with a compact modular design, while the PRO-DS is our full-size dual-stage platform with expanded pressure range, dual-gauge instrumentation, and modular configuration options.
The DS-Mini CO2 System packages the DS-Mini regulator with a refillable aluminum CO2 cylinder and CO2-resistant tubing, providing a configurable foundation for single- or multi-aquarium planted CO2 installations.
Compare GLA CO2 Regulators & Systems
GLA CO2 Equipment
Green Leaf Aquariums specializes in planted aquarium CO2 equipment engineered around precision, reliability, and long-term performance. GLA regulator systems are built specifically for the demands of nature aquariums and high-tech planted aquarium environments.
Each GLA regulator is individually inspected and tested in the USA prior to shipment to help ensure dependable operation and consistent performance.
Support & Warranty
Return Policy: Due to the technical nature of pressurized aquarium CO2 equipment, this item is non-returnable and non-refundable. Qualifying defects remain covered under the GLA Limited Lifetime Warranty and are handled separately through warranty support. Please contact GLA prior to ordering if you need assistance with product selection, installation, or compatibility.
- Limited Lifetime Warranty: Regulator covered against qualifying defects in materials and workmanship
- 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 is required for warranty claims.
This warranty does not guarantee product performance for the lifetime of the purchaser. Product lifespan may vary based on usage, installation, maintenance, 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 accidental damage
- Use of improper tools, fittings, or excessive force
- Modifications, alterations, or unauthorized repairs
- Damage caused by contamination, corrosion, or improper gas supply
- Normal wear, cosmetic wear, or external damage that does not affect normal functionality
Important: A wrench should only be used to secure the regulator to the CO2 cylinder. Damage resulting from improper use of tools, excessive force, 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.
For complete warranty coverage, exclusions, claim requirements, and terms, please review our Shipping, Returns & Warranty Policy.
Customer Reviews
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Very nice quality stuff from GLA.
I purchased this to replace my co2art regulator because the needle valve and solenoid were so unreliable. I was always adjusting my co2 to the point it was giving me anxiety. After a month of using GLA co2 systems its been just terrific. A breath of fresh air and I literally feel like I can breath again. My co2 is more stable now by looking at the data from my Apex controller. You will see cheaper options, but GLA is the best in the industry in co2. The service and reliability is worth every penny. Thank you GLA.
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Quality co2 system through and through.
Wonderful experiance with GLA. Ive been back already for other parts and could not be happier. This system is much nicer than any other system I have owned. GLA thought of everything with this compact co2 system. Its dual stage, has two working opposing piston diaphragms. The needle valve is whats super nice, you get such a smooth linear motion with your bubble counter. You can control the flow with ease and this thing is always steady in its feed. Great price too!
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This is a superb co2 system.
After spending the week trying to decide which system to get I decided on this. It was a little more than the Gro kit, but worth it. This one is modular. I can feed two tanks or more with this one system. GLA provides a shiny nice cylinder,tubing,check valve and seal. All you have to do is add some sort of diffuser. I opted for the GLA co2 reactor. I gotta say, all the GLA gear under my tank is nothing short of stellar. I wish I had a glass cabinet so you could see the beauty in it all. I added an additional manifold so I could feed my 2 tanks at one time and I love how its all so effortlessly working everyday. I dont do anything ever but clean my bubble counters every few weeks. GLA does a stand up job providing superior essentials. Extremely helpful every step of the way and was happy to post this review for GLA. I would have given more stars had I had the option.
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Very nice co2 system.
Very pleased with this co2 system. Its very precise every day and simple to use. I love its versatility being able to work on all cylinder types. Im really enjoying my GLA experience. Ive been back several times and always happy with everything.
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Its awesome!
Really enjoying this co2 system. I chose this kit because it was the do everything regulator. Im not sure why they dont mention it or maybe I missed it but you can use this regulator on any cylinder type. This kit comes with a 5lb cylinder but I will be getting stationed overseas soon and I will definitely be bring this with me. Only problem is in Guam I will need to use paintball or disposable. Either way this GLA kit has been amazing!
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Excellent Compact Regulator
Very impressed with this regulator so far, extremely well made and setup was super easy. Thank you!
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Fantastic!
I love this system and my experience with GLA. Not only is this co2 system super nice, its well priced and feature rich which I like. Its super compact and fits just right under my 90p. Unreal how they are able to pack dual stage technology in such a small package.
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I love this co2 system.
I think this is GLA's best bargain in terms of a co2 system. You get dual stage co2 regulator, modular manifolds and a beautiful new cylinder. You will need to add a co2 diffuser but thats all your going to need. Comes with easy to follow instructions and they even have videos if you need them. I did both and could not be more pleased. If your reading this and are budget conscious, this is the one!
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We went with the best and so glad!
GLA is your go to for your aquascaping vitals. We ordered our co2 system and aquascaping tools from GLA and my gosh people, its a different world of quality.
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Love it
A dual stage regulator built by GLA, and a complete system to add. All you need is a co2 diffuser and your all good to go. A+
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Worth every penny.
I echo what others have said, such a great co2 system at a very attractive price. GLA through and through. Super high quality across the board down to the packaging. YOU will not find better elsewhere, because Ive tried!
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I love this co2 system.
By recommendation I went with GLA and so happy I did. I could not be more pleased with the products and service. GLA is your go to for aquarium co2 systems. As a veteran aquascaper I can appreciate the level of quality and service. I forever will be a a life long customer.
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Stellar co2 system from GLA.
Amazing quality,price and easy setup. Absolutely one hell of a deal here with GLA. If your looking for a co2 system at a wonderful price, look no further. Love it!
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By far the best co2 system available. GLA quality through and through.
Ive never seen a co2 regulator like this before, let alone being dual stage. Once it arrived I was taken back a few steps, it was much more of a surprise than I could ever imagine. Its incredibly compact and unique and from an aesthetics standpoint its absolutely beautiful. Very well made and incredibly smooth all around. Kudos to GLA for always stepping it up and providing the community with trend leading designs.
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Hands down the best co2 system available.
Spare your searching my friends. This system is top shelf and an absolute bargain. GLA knocked this deal out of the park. Beautiful new co2 cylinder, GLA branded co2 tubing in grey and a check valve that works. I coupled this system with this diffuserhttps://greenleafaquariums.com/products/acrylic-co2-diffuser-with-check-valve-for-rimless-nature-aquarium.html For those looking on hot to install this puppy check here, it was super helpful.https://www.youtube.com/watch?v=gqQwRaM9tsg Just wait until you get a feel for the tune-ability in the bubble rate. Like buttuh!
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Exceptional compact Co2 system.
I’m honored to be first to leave this review. I’ve only had it a few days but here’s what I have to say. Well designed super compact regulator. This model has GLA’s modular manifold system so I like that I can add more tank in the future. Although for me one is enough for now. Until my tank rack is built
