Wyin Aqua Citric Acid CO₂ System – Stainless Steel 5L Complete Kit
Wyin Aqua Citric Acid CO₂ System – Stainless Steel 5L Complete Kit is backordered and will ship as soon as it is back in stock.
Usually arrives in 2–5 business days
- Dispatched within 1 business day
- Proudly Kiwi since 2017
- Expert advice
Ships to New Zealand
Ships to New Zealand
- Free shipping on orders over $150. Not included: rural addresses and bulky items such as aquariums.
- Under $150, courier is $6.80 to $9.90 depending on region, or $11.50 to $14.90 for rural addresses. The exact cost shows at checkout.
- Rural and South Island addresses can take a little longer.
- Damaged or faulty on arrival? Tell us within 7 days for a replacement or refund.
Pickup available at Aquascape Shop
Usually ready in 24 hours
Wyin Aqua Citric Acid CO₂ System – Stainless Steel 5L Complete Kit is backordered and will ship as soon as it is back in stock.
Description
Description
The Wyin Aqua Citric Acid CO₂ System (5L) is a powerful and budget-friendly alternative to pressurized CO₂ systems. Designed for larger or high-demand planted aquariums, this complete stainless steel setup generates CO₂ through a chemical reaction between baking soda, citric acid, and water. The mixture is added directly into the stainless steel cylinder—no extra chambers or high-pressure gas refills required.
The 5-litre polished stainless steel cylinder offers extended operation before refilling and is built for durability with a sleek, corrosion-resistant finish. It’s paired with a precision regulator, 12V DC solenoid valve, and a standard aluminium bubble counter with an integrated check valve. Also included is a ceramic diffuser, 2 metres of CO₂-resistant tubing, and a U-bend connector for clean routing over the tank rim.
This system is ideal for aquarists who want longer intervals between refills and increased control over CO₂ delivery to support healthy, lush plant growth.
How It Works:
Add citric acid, baking soda, and water directly into the stainless steel cylinder. As the solution reacts, it produces CO₂ gas, which is then regulated and delivered into your aquarium. No gas refills or high-pressure cylinders required—just top up the mixture as needed. Please note: baking soda and citric acid are not included.
Instructions for Use (5L Cylinder):
- Prepare Your Mixtures: Use 700 grams of citric acid and 800 grams of baking soda. These materials are not included.
- Assemble the Regulator: Attach the filter membrane to the bottom of the CO₂ regulator.
- Fill the Cylinder: Add 700g citric acid and 800g baking soda directly into the 5L stainless steel cylinder.
- Add Water: Tilt the cylinder at a 45° angle and pour in 1000ml (1L) of tap or distilled water.
- Attach the Regulator: Secure the regulator to the cylinder and monitor the pressure gauge as the reaction begins.
- Connect Bubble Counter: Fill the bubble counter 3/4 full with water and attach it to the regulator. Connect the included CO₂ tubing.
- Complete the Setup: Connect tubing to the diffuser, using the U-bend connector to route it neatly into the aquarium. Secure with suction cups.
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Adjust Flow: Control CO₂ output using the bubble counter. A typical rate is around 1 to 1.5 bubbles per second—higher rates will deplete the mixture more quickly.
Includes:
- 5L stainless steel CO₂ generator tank
- Wyin Aqua precision CO₂ regulator with pressure gauge
- 12V DC solenoid valve for timer-based control
- Aluminium bubble counter with built-in check valve
- Ceramic CO₂ diffuser
- 2 metres of CO₂-resistant 4/6mm tubing
- U-bend hose connector for guiding tubing over the aquarium rim
- Power adapter
- Suction cup holder
Key Features:
- Generates CO₂ using citric acid, baking soda, and water
- Refillable 5L stainless steel tank with polished finish
- Accurate pressure control with regulator and solenoid
- Built-in check valve protects against backflow
- Bubble counter for monitoring and adjusting flow rate (non-quick fill)
- Includes U-bend connector for clean tubing routing
- Easy to refill and maintain with household ingredients
