CO2-Diffuser The CO2 gas is atomized into many bubbles by the diffuser. The bubbles create a larger contact surface enabling the CO2 to dissolve quickly in the aquarium water. The bubble counter visually controls the dosing of the CO2. As a rough rule of thumb: approx. 20 mg CO2 per litre. This corresponds to about 10 bubbles per minute per 100 litres of water. EHEIM CO2-diffuser 400 for small and medium aquariums up to 400 l Small, effective device with an integrated bubble counter and non-return valve.  Easy to connect and attach to the aquarium pane with suction holder.  Advantages: Small, space-saving device Highly efficient diffuser Bubble counter for visual control of CO2 dosing Non-return valve prevents water returning to the CO2 system Hose protection Powerful suction holder

The CO2 gas is atomized into many bubbles by the diffuser. The bubbles create a larger contact surface enabling the CO2 to dissolve quickly in the aquarium water. The bubble counter visually controls the dosing of the CO2. As a rough rule of thumb: approx. 20 mg CO2 per litre. This corresponds to about 10 bubbles per minute per 100 litres of water.EHEIM CO2-diffuser 600 for larger aquariums up to 600 lQuality glass CO2 diffuser with separate bubble counter and safe non-return valve for effective and loss-free CO2 dosing.The large diffuser area ensures optimum and effective distribution of CO2 bubbles in large aquariums. Space-saving corner mounting with two powerful suction holders.Advantages:   User-friendly device with large diffuser area Optimum distribution of CO2 bubbles in large aquariums Separate bubble counter for visual control of CO2 dosing Integrated non-return valve prevents water returning to the CO2 system Safe hose connection Space-saving corner mounting with two powerful suction holders

EHEIM CO2 - Accessories for healthy plant growth in the aquarium Our guarantee to you: Original EHEIM accessories and spare parts are extensively tested, reliable and of the highest quality.

EHEIM CO²Set400 without bottle Aquarium water usually contains too little carbon dioxide (CO2) as it has already been extracted from the tap water at the waterworks.  In addition to light, nitrogen, phosphate and trace elements, etc., the most important nutrient for aquarium plants is CO2 and, the stronger and healthier the plants, the less chance algae has to grow. Plants also produce more of the oxygen that fish need to breathe and CO2 also regulates the pH values in the water, when dosed correctly.Complete with accessories, including: Precision pressure reducer with manometers and precise dosing valve for reusable systems 360° rotating hose connection CO² specific safety hose, pressure resistant, 3m, Ø 4/6 mm CO² safety diffuser including bubble counter and non-return valve for effective CO² dosing 5 x water test strips for analysis of the initial water values CO² long-term test and indicator reagent for permanently measuring of the CO² content in the aquarium Safe and toolfree installation Optional accessories (not included): CO² magnetic valve (night shut-off) Made in Germany 3 years guarantee

EHEIM CO²Set600 without bottle Aquarium water usually contains too little carbon dioxide (CO2) as it has already been extracted from the tap water at the waterworks.  In addition to light, nitrogen, phosphate and trace elements, etc., the most important nutrient for aquarium plants is CO2 and, the stronger and healthier the plants, the less chance algae has to grow. Plants also produce more of the oxygen that fish need to breathe and CO2 also regulates the pH values in the water, when dosed correctly.Complete with accessories, including: Precision pressure reducer with manometers and precise dosing valve for reusable systems 360° rotating hose connection CO² specific safety hose, pressure resistant, 3m, Ø 4/6 mm CO² safety diffuser including bubble counter and non-return valve for effective CO² dosing 5 x water test strips for analysis of the initial water values CO² long-term test and indicator reagent for permanently measuring of the CO² content in the aquarium Safe and toolfree installation Optional accessories (not included): CO² magnetic valve (night shut-off) Made in Germany 3 years guarantee

Only the pHcontrol+e and power supply unit are included in the scope of delivery!EHEIM pHcontrol+e – the smart controller for monitoring and readjusting the pH value in your aquariumWith the EHEIM pHcontrol+e you can easily monitor and optimize the pH in your aquarium via a smartphone, tablet, or PC/MAC simply via a WiFi connection and your web browser. A pH sensor measures the current pH value of the water, and the pHcontrol+e automatically provides the necessary CO2 supply. By controlling the magnetic valve connected in series to the CO2 system it adds as much CO2 as required until the desired pH value is reached.To achieve this you must connect your CO2 system, i.e., a CO2 bottle via pressure reducer as well as magnetic valve (see the EHEIM CO2 sets) and a CO2 diffuser. The pHcontrol+e has a day/night control and can be linked to the lighting control EHEIM LEDcontrol+e (see the EHEIM DIGITAL family). In addition to light, nitrogen, phosphate, trace elements, etc., the plants in your aquarium need CO2 above all as an important nutrient. The better they thrive, the more oxygen they release, which the fish need to breathe. Thus, the EHEIM pHcontrol+e indirectly provides oxygen and the optimal pH value for your fish by adding CO2. This is usually between pH 6 and pH 8; pH 7 is considered a neutral value for reference.Note:The basis for measuring and stabilising the pH value is the carbonate hardness ("KH") of the water. Therefore, the EHEIM pHcontrol+e (in Smart mode) initially queries the KH value. Because KH, CO2 and pH value influence each other.Features of the EHEIM pHcontrol+e A smart controller for monitoring and controlling the pH value in the aquarium by regulating the addition of CO2. Includes Wireless WiFi connection with a WLAN-enabled end device (smartphone, tablet, PC/MAC). Has connection and compatibility with devices of the EHEIM DIGITAL family. Measures the pH value through the pH sensor (measuring range: pH 0 to pH 14). Control range of the controller pH 6 to pH 9. Needs to be coupled via pressure reducer with CO2 bottle (EHEIM CO2 set). Electronically controls addition of CO2 through interposed magnetic valve. Adjusts CO2 addition by linking with LEDcontrol+e (day/night control) in smart mode or simple and extended bio mode with own day/night control. Queries the KH value (carbonate hardness) in advance. Sets water test and calibration reminders. Guided calibrations of the pH sensor. Sends warning for deviation of pH value (up/down). Notes if EHEIM pH sensor needs to be replaced. Provides best performance, high power, stable connection, and large memory capacity through new improved chip generation Highest safety and reliability - 3 years warranty

EHEIM pHcontrol+e – the smart controller for monitoring and readjusting the pH value in your aquariumWith the EHEIM pHcontrol+e you can easily monitor and optimize the pH in your aquarium via a smartphone, tablet, or PC/MAC simply via a WiFi connection and your web browser. A pH sensor measures the current pH value of the water, and the pHcontrol+e automatically provides the necessary CO2 supply. By controlling the magnetic valve connected in series to the CO2 system it adds as much CO2 as required until the desired pH value is reached.To achieve this you must connect your CO2 system, i.e., a CO2 bottle via pressure reducer as well as magnetic valve (see the EHEIM CO2 sets) and a CO2 diffuser. The pHcontrol+e has a day/night control and can be linked to the lighting control EHEIM LEDcontrol+e (see the EHEIM DIGITAL family). In addition to light, nitrogen, phosphate, trace elements, etc., the plants in your aquarium need CO2 above all as an important nutrient. The better they thrive, the more oxygen they release, which the fish need to breathe. Thus, the EHEIM pHcontrol+e indirectly provides oxygen and the optimal pH value for your fish by adding CO2. This is usually between pH 6 and pH 8; pH 7 is considered a neutral value for reference.Note:The basis for measuring and stabilising the pH value is the carbonate hardness ("KH") of the water. Therefore, the EHEIM pHcontrol+e (in Smart mode) initially queries the KH value. Because KH, CO2 and pH value influence each other.Features of the EHEIM pHcontrol+e A smart controller for monitoring and controlling the pH value in the aquarium by regulating the addition of CO2. Includes Wireless WiFi connection with a WLAN-enabled end device (smartphone, tablet, PC/MAC). Has connection and compatibility with devices of the EHEIM DIGITAL family. Measures the pH value through the pH sensor (measuring range: pH 0 to pH 14). Control range of the controller pH 6 to pH 9. Needs to be coupled via pressure reducer with CO2 bottle (EHEIM CO2 set). Electronically controls addition of CO2 through interposed magnetic valve. Adjusts CO2 addition by linking with LEDcontrol+e (day/night control) in smart mode or simple and extended bio mode with own day/night control. Queries the KH value (carbonate hardness) in advance. Sets water test and calibration reminders. Guided calibrations of the pH sensor. Sends warning for deviation of pH value (up/down). Notes if EHEIM pH sensor needs to be replaced. Provides best performance, high power, stable connection, and large memory capacity through new improved chip generation Highest safety and reliability - 3 years warranty

Only the pHsensor and the calibration liquid are included in the scope of delivery! EHEIM pHcontrol+e – the smart controller for monitoring and readjusting the pH value in your aquariumWith the EHEIM pHcontrol+e you can easily monitor and optimize the pH in your aquarium via a smartphone, tablet, or PC/MAC simply via a WiFi connection and your web browser. A pH sensor measures the current pH value of the water, and the pHcontrol+e automatically provides the necessary CO2 supply. By controlling the magnetic valve connected in series to the CO2 system it adds as much CO2 as required until the desired pH value is reached.To achieve this you must connect your CO2 system, i.e., a CO2 bottle via pressure reducer as well as magnetic valve (see the EHEIM CO2 sets) and a CO2 diffuser. The pHcontrol+e has a day/night control and can be linked to the lighting control EHEIM LEDcontrol+e (see the EHEIM DIGITAL family). In addition to light, nitrogen, phosphate, trace elements, etc., the plants in your aquarium need CO2 above all as an important nutrient. The better they thrive, the more oxygen they release, which the fish need to breathe. Thus, the EHEIM pHcontrol+e indirectly provides oxygen and the optimal pH value for your fish by adding CO2. This is usually between pH 6 and pH 8; pH 7 is considered a neutral value for reference.Note:The basis for measuring and stabilising the pH value is the carbonate hardness ("KH") of the water. Therefore, the EHEIM pHcontrol+e (in Smart mode) initially queries the KH value. Because KH, CO2 and pH value influence each other.Features of the EHEIM pHcontrol+e A smart controller for monitoring and controlling the pH value in the aquarium by regulating the addition of CO2. Includes Wireless WiFi connection with a WLAN-enabled end device (smartphone, tablet, PC/MAC). Has connection and compatibility with devices of the EHEIM DIGITAL family. Measures the pH value through the pH sensor (measuring range: pH 0 to pH 14). Control range of the controller pH 6 to pH 9. Needs to be coupled via pressure reducer with CO2 bottle (EHEIM CO2 set). Electronically controls addition of CO2 through interposed magnetic valve. Adjusts CO2 addition by linking with LEDcontrol+e (day/night control) in smart mode or simple and extended bio mode with own day/night control. Queries the KH value (carbonate hardness) in advance. Sets water test and calibration reminders. Guided calibrations of the pH sensor. Sends warning for deviation of pH value (up/down). Notes if EHEIM pH sensor needs to be replaced. Provides best performance, high power, stable connection, and large memory capacity through new improved chip generation Highest safety and reliability - 3 years warranty