Professional CO2 fertiliser system with automatic CO2/pH control WITHOUT CO2 CYLINDER for vigorous & beautiful aquarium plants and the correct pH value

  • CO2 fertiliser system with automatic CO2/pH control to supply all aquarium plants in freshwater aquariums from 40 to 600 l ideally. CO2 cylinder (disposable or refillable) and factory-fresh pH electrode to be purchased separately
  • Simple assembly: screw pressure reducer onto CO2 cylinder (not included), connect solenoid valve to CO2 control unit, hose to bubble counter/check valve and reactor. Attach pH electrode (not included). Set CO2/pH control unit
  • No hose slippage thanks to hose screw connections, check valve prevents water from entering the cylinder. Pressure gauges show cylinder and working pressure. Pressure reducer fits disposable and refillable CO2 cylinders
  • The CO2/pH Control unit measures the pH value (CO2-dependent) via the pH electrode (not included) and automatically regulates the CO2 supply via the solenoid valve until the ideal pH value with the correct amount of CO2 is reached
  • Package contents: pressure reducer with solenoid valve, CO2/pH computer, 3 m hose, bubble counter with check valve, TAIFUN SPIRAL CO2 reactor + extension set
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Recommended retail price incl. VAT
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CO2 Flasche
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Bei unseren Premiumpartnern können Sie Ihre CO2 Flaschen füllen / tauschen und Produkte des JBL PROFLORA CO2 Sortiments erwerben.

Product information

Nutrition for aquarium plants
Plants provide the aquarium with vital oxygen for your aquarium inhabitants, prevent algae growth, remove pollutants, provide hiding places and reduce pathogens. Plant fertiliser systems with CO2 cylinders supply the plants with the main nutrient CO2 through the water. The plants absorb this and convert it into sugar and oxygen in photosynthesis with the help of light.

Easy to install
(The system contains all components except for the CO2 cylinder and the pH electrode). Screw the pressure reducer onto a CO2 cylinder (suitable for disposable and refillable cylinders) and connect it by hose to the bubble counter (incl. backflow protection) and then to the reactor in the aquarium.
CO2 thus enters the aquarium and is dissolved in the water with the help of the reactor. The solenoid valve is regulated by the CO2 control unit and only adds CO2 if the pH value is too high (pH value depends on CO2). This means that there is always the ideal amount of CO2 in the water.

Technical information
Inc. temperature sensor, modern graphic display with touchpad, sensor check during each calibration, error diagnosis during failed calibration, permanent display: pH actual/set value, sensor voltage, temperature, calibration reminder in days/hours, valve status, precision of measurement, set point adjustment: freely selectable or automatic calculation by means of auto pH, automatic temperature compensation during measuring and calibration, hysteresis freely selectable (upper and lower deviation from switching point), alarm function pH (alarm range), alarm function temperature (range and set point alarm), selectable valve status, language selection: D/BG/F/NL/I/DK/E/P, reset function, universal power unit suitable for all common mains voltages worldwide.

pH electrode
A pH electrode is NOT included in the set and needs to be purchased separately. This ensures that you do not receive an aged electrode in the set, but always a factory-fresh one!



Art. no.:
EAN Code:
Einweg oder Mehrweg CO2 cylinder
Volume packaging:
9.48 l
Gross weight:
2035 g
Net weight:
1445 g
Weight factor:
Packaging dimensions (l/h/w):
157/305/198 mm


Animal species: Arowana, Axolotl, Barbels, Blowfish, Catfish, Cichlids, Crayfish, Danions, Discus, Flowerhorn, Goldfish, Gouramis, Guppy, Juvenile fish, Killifish, Livebearers, Loaches, Panchaxes, Rainbowfish, Reedfish, Shrimps, Snails, Spiny eels, Tetra, Veiltails, freshwater butterflyfish
Animal size: For all animal sizes
Animal age group: All aquarium fish
Volume habitat: 40-600 l
Material: Plastic (PC), metal (aluminium), plastic (ABS), metal (copper)
Colour: multicoloured

Electronic label / illuminant

Mercury: No
Dimmable: No

Technical Data

Height:90 mm
Length:80 mm
Width:140 mm
Wird für die Montage des Druckminderers ein Werkzeug benötigt?

Nein, ein Werkzeug wird nicht benötigt und sollte auch auf keinen Fall verwendet werden. Die Verwendung eines Werkzeugs kann zu Beschädigungen führen. Die Montage des Druckminderers an die CO2-Flasche können Sie mit Ihren Händen vornehmen. Drehen Sie nur so weit, bis ein Widerstand zu spüren ist und dann noch etwa eine halbe Umdrehung weiter. So sitzt die Druckregelarmatur handfest. Bei dem Aufbringen der Armatur an Einwegflaschen wird ein kurzes Zischen zu hören sein.

Wird zum Einstellen der CO2 Menge ein Werkzeug benötigt?

Nein, ein Werkzeug sollte auf keinen Fall verwendet werden. Die Verwendung eines Werkzeugs kann zu Beschädigungen führen. An der Spitze des Nadelventils befindet sich ein dünner Dorn. Wird das Nadelventil im Uhrzeigersinn geschlossen und zu fest oder mit einem Werkzeug zugedreht, kann es abbrechen und die Druckregelarmatur beschädigen.

The working pressure on the pressure gauge does not change

When you adjust the working pressure, the CO2 addition needs to be running actively, otherwise the change will not be immediately visible in the event of a reduction. An increase is also visible without running CO2, but not immediately. That’s why you need to ensure that CO2 is added during the adjustment process for every reduction or increase.

The pressure reducer cannot be removed

Your system is probably still under pressure. Close the cylinder valve and remove the CO2 hose from the pressure regulator fitting. Open the regulating screw and release the pressure still present in the pressure regulator until both pressure gauges show 0 bar. Loosen the connecting nut of the pressure regulator fitting from the cylinder valve.

Is 1.2 bar working pressure sufficient for my CO2 system?

For a long time JBL CO2 pressure reducers had a preset working pressure of 1.5 bar. This has become established in people's minds. With the new JBL PROFLORA CO2 pressure reducers with pressure gauges, the working pressure is set to 0 bar on delivery. You admit CO2 via the large adjustment knob for the working pressure and turn it until the desired working pressure is reached. Approx. 1.2 bar is the maximum setting here. A minimum of 0.6 bar is required for the operation of all JBL non-return valves or backflow protections. This ensures that the check valve opens. A higher working pressure is not necessary, which is why all the accessories also work with the JBL PROFLORA BIO SETs. A lot of CO2 accessories available on the market give very different specifications for the working pressure. To be on the safe side, the standard of 1.5 bar which is common on the market is mentioned. As a rule, the working pressure required is the same as that on which the JBL PROFLORA CO2 accessories are based. Only a few exceptions require a working pressure of over 2 bar and are very special technical components.

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Blog (opinions & experiences)

Perfect plant growth in your aquarium with the JBL PROFLORA CO2 System

Carbon dioxide (CO2) is the main food for your aquarium plants. With the help of a CO2 system you supply your plants with enough CO2 so that they can grow vigorously and healthily.

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CO2, also called carbon dioxide, is the main nutrient for all plants.

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JBL CO2 systems without cylinders - the smart solution

There are many aquarium owners who would like to use CO2 to promote the growth of their aquarium plants, but for various reasons only need a set without a CO2 storage cylinder.

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Reference guide (Themeworld)


With the guarantee extension JBL GarantiePlus you secure your extra-long extended 4-year guarantee from the date of purchase for your JBL product. Do not miss out on your extended guarantee claim!

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Additional product information and downloads

safety instructions

  • safety instruction for technical devices
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spare parts
Customer reviews

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