Professional 2.0 – CO₂ kit with solenoid valve
Aquario Professional 2.0 is a CO2 set for planted freshwater aquariums, built around a regulator with…
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This set suits hobbyists who run CO2 injection in planted freshwater tanks and want automatic dosing with a visible check on dissolved CO2. The regulator combines the main control elements of the system in one unit, so it can be set up without buying separate components.
Why it matters
- The regulator has a built-in bubble counter, a precision needle valve and a check valve, which together control the gas flow to the diffuser.
- Two gauges show the pressure inside the cylinder and the working pressure after reduction, so you can estimate how much gas remains in the cylinder.
- The solenoid valve connects to a timer or pH controller and switches CO2 on and off automatically, which supports dosing at night when plants take up little carbon and pH tends to drop.
- The glass diffuser with a ceramic sinter releases gas across its whole surface, which the manufacturer links to better dissolution and lower losses. The Drop Checker, placed in the tank, changes colour to indicate the CO2 level in the water.
Specifications
- Symbol: ZEST.CO2 PROFESSIONAL 2.0
- EAN: 5907796395004
- Weight: 0.78 kg
- Regulator body: metal alloy
- Contents: CO2 regulator with solenoid valve (BLUE Aquario), glass diffuser, Drop Checker, 3 m hose, cylinder wrench, installation and first-start manual in Polish, Czech, English, German, Spanish and Russian
What it works with
The set is designed for planted freshwater aquariums that use pressurised CO2 from a cylinder. The solenoid valve works with an external timer or pH controller, so the injection can be matched to the photoperiod or to the pH reading. The cylinder is not included.
Technical specification
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Frequently asked questions
The box contains the CO2 regulator with solenoid valve, a glass diffuser, a drop checker, a 3 m hose, a wrench for attaching the regulator to the cylinder, and a multilingual installation manual. The contents list does not include a CO2 cylinder, so check your setup before ordering.
Yes. The solenoid valve connects to a timer or pH controller and switches CO2 supply on and off automatically. This is useful for keeping CO2 at a safe level at night, when plants are not consuming it and pH tends to drop.
The drop checker is placed in the aquarium and continuously shows the CO2 level in the water through its color change. It gives you an ongoing visual indication rather than a one-time reading.
The regulator has two gauges: one shows the pressure inside the cylinder, and the other shows the working pressure after reduction. Reading the cylinder gauge lets you estimate how much gas is left and how fast it is being used.
The diffuser is made of laboratory-grade glass with a microporous ceramic sinter. It releases gas across its entire surface, which the manufacturer states gives better dissolution of CO2 in the water and fewer losses.
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