Wyin Aqua Citric Acid CO₂ System – Stainless Steel 1L Complete Kit

Enhance your planted aquarium with the Wyin Aqua Citric Acid CO₂ System (1 L). This premium kit substitutes cumbersome high-pressure gas cylinders with a safe, efficient citric acid + baking soda chemical reaction housed in a robust stainless steel vessel. Ideal for nano to medium tanks, this 1 L version delivers reliable CO₂ output, full regulator control and finish-level components.

What’s included in the kit

• 1 L polished stainless steel CO₂ generator cylinder
• Precision CO₂ regulator with gauge & needle valve
• 12 V DC solenoid valve for on/off control (timer compatible)
• Aluminium bubble counter with integrated check valve
• Ceramic CO₂ diffuser for fine CO₂ dispersion
• 2 m CO₂-resistant tubing (4/6 mm)
• U-bend tube holder for neat tank placement
• Suction-cup holder and mounting hardware
  

Instructions for use (for 1 L version)

1. Add 140 g citric acid + 160 g baking soda into cylinder.
2. Pour in 200 ml water carefully (tilt cylinder to minimise foam).
3. Attach regulator and watch pressure build.
4. Prime bubble counter with water (~¾ full), connect tubing and diffuser.
5. Secure tubing around rim with U-bend tool, set bubble rate.
6. For best results: 0.5–1 bubble/second is a good start for moderate setups; adjust as plants respond.

Specifications

• Capacity: 1 L
• Cylinder material: SUS304 stainless steel (polished)
• Approximate dimensions: 190 mm height × 102 mm diameter 
• Tube: 4/6 mm CO₂-resistant tubing
• Solenoid voltage: 12 V DC
• Kit net weight: ~1.3kg (for reference) 

Usage Notes & Safety

• Reagents (citric acid/baking soda/water) are not included.
• Always depressurize before opening cylinder.
• Monitor bubble rate and plant health.
• Clean diffuser and bubble counter regularly to avoid blockages.
• This kit is designed for planted setups.