Hygger CO2 Upgraded 2L/5L Aquarium CO2 Generator System with Timer-Enabled Motor Valve Kit

Effortless, programmable CO2 for thriving aquatic plants

Meet the Hygger CO2 Upgraded Generator System, available in 2L and 5L configurations. This all-in-one kit blends a durable stainless steel bottle with a timer-enabled motor valve, delivering controlled CO2 dosing that adapts to your aquarium needs without guesswork.

Designed for reliability, the system uses a precision motor valve to schedule injections, offering repeatable intervals and consistent gas delivery. The quick-release design makes setup and maintenance faster, so you can spend more time enjoying your tank and watching plants flourish.

What makes it stand out

• The motor valve provides accurate timing for CO2 release, helping you dial in dosing patterns that suit your plants.
• Quick-release components—bubble counter, valve, and hose—simplify assembly and cleanup.
• Heavy-duty bottles in SUS304 stainless steel (2L at 1.2mm, 5L at 1.5mm) offer durability and high-pressure resistance.
• Built-in safety: automatic pressure relief valve activates around 30–40 bar to reduce overpressure risks.
• All-in-one DIY kit: CO2 cylinder, hose, suction cups, diffuser, bubble counter, and motor valve included; ready to mix with baking soda and citric acid.

How to get started: after turning the system on in automatic mode, briefly switch to manual to turn it off, then back to automatic to engage the built-in program. This single configuration keeps the unit ready for normal operation. We’re continually refining the timer’s program for smoother direct use—your patience is appreciated.

Before you start

• The motorized valve may emit a soft sound when switching on or off; this is normal and not a malfunction.
• Soak the diffuser for 24 hours before first use; if bubbles appear slowly, allow time for pressure to build and inspect tube connections for leaks.
• The motorized valve is not waterproof; keep away from moisture beyond the intended aquarium environment.
• Baking soda and citric acid are required separately to generate CO2.

What’s included

• 2L CO2 bottle (1.2mm SUS304 stainless steel)
• 5L CO2 bottle (1.5mm SUS304 stainless steel)
• CO2 cylinder, hose, suction cups, bubble counter, diffuser
• Motor valve and quick-release fittings

Whether you’re keeping small nano tanks or larger planted tanks, Hygger CO2 aims to provide a dependable, adjustable solution that supports lush greens without guesswork. Potential benefits include more consistent gas diffusion and easier maintenance, with safety features designed to guard your setup.