GLA DS-Mini Dual Stage CO2 Regulator (Modular Manifold)

GLA DS-Mini Dual Stage CO2 Regulator (Modular Manifold)

The GLA DS-Mini Dual Stage CO2 Regulator is a compact, professional-grade regulator designed for aquarists seeking dual-stage pressure regulation, modular expandability, and precise CO2 control in a space-efficient platform.

Built with premium pneumatic components, the DS-Mini combines GLA dual-stage regulator architecture with a modular manifold system that can be configured for one aquarium or expanded to independently control multiple aquariums from a single CO2 cylinder. Each 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
• Pressure Monitoring: Integrated working-pressure gauge
• Output Pressure Range: 0–60 PSI
• CO2 Distribution: Modular 1–6 aquarium configuration
• Independent Control: Precision needle valve and bubble counter for each manifold output
• Automation: Integrated electric solenoid
• Warranty: GLA Limited Lifetime Warranty

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
• Long-term planted aquarium setups where modular scalability is a priority

The DS-Mini is not limited to a particular aquarium size or skill level. It is designed for both beginner and experienced aquarists who prefer compact dual-stage architecture with the ability to expand their CO2 system over time.

Why Choose the GLA DS-Mini?

The DS-Mini combines the pressure-regulation advantages of a dual-stage design with a smaller overall footprint and modular CO2 distribution. It is an ideal platform for aquarists who want long-term flexibility without moving to the larger size and expanded pressure range of the PRO-DS.

• Compact Dual-Stage Design: Premium pressure regulation in a space-efficient platform
• Modular Manifold System: Configure the regulator for one aquarium or expand to as many as six independently controlled outputs
• Precision CO2 Adjustment: Each manifold block includes its own precision needle valve
• Integrated Flow Monitoring: Each manifold block includes a bubble counter for convenient visual CO2 monitoring
• Automatic Operation: Integrated solenoid allows CO2 injection to be controlled with a timer or compatible controller
• System Protection: Integrated pressure relief valve provides an additional level of protection

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 controls CO2 operation automatically and may be paired with a standard timer or compatible controller to coordinate injection with the aquarium photoperiod.

The integrated working-pressure gauge provides a clear visual reference for regulator output pressure. The DS-Mini uses a single gauge dedicated to working pressure rather than separate working-pressure and cylinder-pressure gauges.

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 modular manifold allows the regulator to grow with your aquarium setup. Select the number of manifold blocks required for your current installation, then add compatible blocks later if additional aquariums are added.

• 1 Block: 1 independently controlled aquarium
• 2 Blocks: 2 independently controlled aquariums
• 3 Blocks: 3 independently controlled aquariums
• 4 Blocks: 4 independently controlled aquariums
• 5 Blocks: 5 independently controlled aquariums
• 6 Blocks: 6 independently controlled aquariums

Each manifold block includes its own precision needle valve and integrated bubble counter, allowing every aquarium to be adjusted independently while sharing a single regulator and CO2 cylinder.

View GLA Modular Manifold Expansion Blocks

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 monitoring for each connected aquarium
• 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: Modular 1–6 aquarium configuration
• Output Control: Independent precision needle valve for each manifold block
• Flow Monitoring: Integrated bubble counter for each manifold block

What’s Included

• GLA DS-Mini Dual Stage CO2 Regulator
• Selected 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
• GLA OEM CO2 tank seal

Please Note: A CO2 cylinder, CO2-resistant tubing, and a compatible diffuser, atomizer, or reactor are required to complete the CO2 installation and are sold separately.

Frequently Asked Questions

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 more than one aquarium?
Yes. The DS-Mini 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. When expanding an existing regulator, be sure to select the manifold generation that matches your regulator because G2 and G3 manifold blocks are not cross-compatible.

What is the benefit of dual-stage regulation?
Dual-stage regulation reduces cylinder pressure through two stages rather than one, providing additional working-pressure stability as cylinder pressure changes and reducing the likelihood of end-of-tank pressure increases.

Is a dual-stage regulator always better than a single-stage regulator?
Not necessarily. Both single-stage and dual-stage GLA regulators can provide stable, controllable CO2 delivery when properly configured. Dual-stage systems offer additional pressure-regulation refinement and modular scalability, while a streamlined single-stage platform such as the GLA GRO may be preferred when simplicity and compact installation are the priorities.

Does the DS-Mini display 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 with the DS-Mini?
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 diffuser, atomizer, or reactor.

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. The DS-Mini may be used on both small and large planted aquariums when configured appropriately.

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 a compact regulator with dual-stage pressure regulation and future modular expansion capability.

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.

Each platform is designed for a different installation style and level of system flexibility.

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.