Overview Designed for planted aquariums, Hygger CO2 Pro5L Generator System a balance of durability, safety, and adjustable delivery

The 5L bottle is constructed from premium SUS304 stainless steel with a 1

5mm wall, making it noticeably sturdier than many standard gas bottles

This is not a plastic unit—it's built to withstand regular CO2 pressure while delivering a steady supply of gas to your tank

Inside, the system pairs a precision regulator with a 12V waterproof solenoid valve for automated operation, plus a filter, a precision needle valve for fine dosing, and an adjustable bubble counter equipped with a built-in check valve to prevent backflow

A built-in automatic pressure relief valve activates when CO2 pressure reaches the upper safe range (approximately 35–40 bar), ing an additional safety layer without complicating manual checks

Why plant tanks benefit When used with the right lighting and supplementation, this setup can support more consistent CO2 delivery, which many hobbyists associate with greener growth in fast-growing foreground plants and improved color in densely planted tanks

The timer-driven solenoid lets you tailor the injection window to your aquarium's rhythm, turning CO2 on during daylight hours and pausing when plants no longer need it

Keep in mind that CO2 results vary by tank size, stocking levels, and feed routines

The kit is designed to be a flexible tool, ing dependable control and repeatable dosing that can adapt as your plant collection evolves

What’s in the box SUS304 stainless bottle Regulator Solenoid valve Filter Precision needle valve Adjustable bubble counter with check valve Important note Powders to generate CO2 gas (citric acid and sodium bicarbonate) are not included in the package; you will purchase them separately according to your preferred DIY approach

Tips for results Schedule CO2 injections with the timer to align with your tank's light period and plant demand

Monitor safe operating pressure and rely on the relief valve for overpressure protection

Use the needle valve to set a gentle bubble rate, then verify with the bubble counter for stable dosing

FAQ Q: What is included in Hygger CO2 Pro5L Generator System kit

A: Durable SUS304 bottle, regulator, solenoid valve, filter, needle valve, and bubble counter

Q: What safety features does this CO2 generator have

A: Automatic pressure relief valve (35–40 bar) and a 12V waterproof solenoid to minimize leaks