EHEIM CO²Set600 without bottleTypically, aquarium water lacks sufficient carbon dioxide (CO2) since it has already been removed from the tap water during treatment. Alongside light, nitrogen, phosphate, and trace elements, CO2 is a crucial nutrient for the growth of aquarium plants. The healthier and more robust the plants are, the less likely it is for algae to thrive. Moreover, plants generate more oxygen that fish require for respiration, and when administered correctly, CO2 helps to maintain balanced pH levels in the water.Includes all necessary accessories, such as:Precision pressure reducer equipped with gauges and an accurate dosing valve designed for reusable systems360° swivel hose connectionCO²-specific safety hose, pressure-resistant, measuring 3m with a diameter of 4/6 mmCO² safety diffuser complete with bubble counter and non-return valve for efficient CO² dosing5 water test strips for evaluating the initial water parametersCO² long-term test and indicator reagent for ongoing measurement of CO² levels in the aquariumSimple and tool-free setupOptional accessories available (not included): CO² magnetic valve (for night shut-off)Produced in Germany3-year warranty

Long-Term CO2 Monitoring TestIt is essential to regularly check the CO2 levels in your aquarium, as the addition of CO2 significantly affects the water's pH level. Consistent monitoring should always include a long-term CO2 test, an indicator solution, and water test strips designed for CO2 fertilization systems.EHEIM CO2 Long-Term Test KitThis comprehensive kit allows for the continuous monitoring of CO2 levels in your aquarium, featuring a long-term test, an indicator solution, and three test strips to evaluate your initial water parameters.The CO2 long-term test is secured to the aquarium glass using a suction cup and filled with aquarium water up to the indicated line (approximately 1 ml). After adding four drops of the indicator solution, wait for the color to shift, then compare the resulting color to the provided color chart.The scale will reflect the corresponding pH values based on the water's carbonate hardness (dKH).EHEIM Long-Term Test with Suction CupIndicator solution - 10 ml, sufficient for approximately 90 usesIncludes 3 x 5 multi-water test strips for evaluating initial water parameters and determining carbonate hardness (dKH), which is crucial for CO2 fertilization.Premium QualityManufactured in GermanyEHEIM CO2 Indicator Solution - Long-Term TestIndicator solution - 10 ml, providing around 90 applications (4 drops each)EHEIM TEST – 5 in 1Five multi-water test strips for quick and easy assessment of the five key water parameters in your aquarium and pond: NO2, NO3, GH, KH, and pH.Packaging: 50 pieces of 5 multi-test strips

EHEIM CO²Set400 without bottleTypically, aquarium water lacks sufficient carbon dioxide (CO2) since it has already been removed from the tap water during treatment. Alongside light, nitrogen, phosphates, and trace elements, CO2 stands out as a vital nutrient for aquatic plants. The healthier and more robust the plants, the lesser the likelihood of algae growth. Additionally, plants generate more oxygen, essential for fish respiration, and CO2 helps maintain balanced pH levels in the water when administered correctly.This set comes complete with essential accessories, including:Precision pressure regulator featuring manometers and an accurate dosing valve for use in reusable systems360° swiveling hose connectorCO²-specific safety hose, pressure-resistant, 3m, Ø 4/6 mmCO² safety diffuser equipped with a bubble counter and non-return valve for efficient CO² dosing5 water test strips to evaluate initial water parametersCO² long-term test and indicator reagent for continuous monitoring of CO² levels in the aquariumEasy and tool-free installationOptional accessories (sold separately): CO² magnetic valve (for nighttime shut-off)Produced in Germany3-year guarantee

EHEIM CO2 – 24V magnetic valve for powerLED+This magnetic valve is specifically designed for the EHEIM LEDcontrol+ lighting management system. It connects to the EHEIM powerLED+ lighting and LEDcontrol+, turning off the CO2 supply during the sunset phase overnight. At dawn, the CO2 supply is restored. Additionally, the magnetic valve can function without LEDcontrol+ by using a standard timer. Please note: The magnetic valve is not adjustable for brightness.Benefits:Maintenance-freeQuiet operationComes with a non-return valveIncludes a 1.5m cableManufactured in Germany3-year warrantySpecifications: 24 V DC, 1.5 WMaximum pressure 6 barDiameter 4/6 mmWater-resistant (IP65)

EHEIM CO2 - 230V Magnetic ValveCO2 Magnetic Valves (Night Shut-Off) (Solenoid Valve)This magnetic valve allows you to easily turn off the CO2 supply in your aquarium when needed – for instance, to manage pH levels or during the night.By shutting off the CO2 supply overnight, you can save up to 50% of CO2, as photosynthesis occurs only during the day when plants take in carbon dioxide and emit oxygen. At night or in the absence of light, plants utilize oxygen, making CO2 fertilization unnecessary.The magnetic valve operates on 230V alternating current and performs optimally when linked to the aquarium light timer. This setup enables the magnetic valve to be turned off in sync with the aquarium lights. Benefits:No maintenance requiredQuiet operationComes with a non-return valveIncludes a 1.5m cableManufactured in Germany3-year warrantySpecifications:230 V/50 Hz, 1.6 WP max 6 barø 4/6 mmWaterproof (IP65)

CO2-DiffuserThis diffuser atomizes CO2 gas into numerous bubbles. The resulting bubbles enhance the contact area, allowing the CO2 to dissolve rapidly in the aquarium water.The bubble counter provides a visual method to monitor CO2 dosing. As a general guideline, aim for approximately 20 mg of CO2 per liter, which translates to about 10 bubbles per minute for every 100 liters of water.EHEIM CO2-diffuser 600designed for larger aquariums up to 600 lThis high-quality glass CO2 diffuser comes with a separate bubble counter and a reliable non-return valve, ensuring effective and loss-free CO2 dosing.The expansive diffuser area guarantees optimal and efficient distribution of CO2 bubbles in larger aquariums. It features a space-saving corner mount supported by two strong suction holders.Benefits:Easy-to-use design with a large diffuser areaEnsures optimal distribution of CO2 bubbles in spacious aquariumsIncludes a separate bubble counter for easy monitoring of CO2 dosingThe built-in non-return valve stops water from flowing back into the CO2 systemSecure hose connectionCompact corner mounting with two robust suction holders

CO2-DiffuserThis diffuser atomizes CO2 gas into numerous tiny bubbles. These bubbles increase the surface area, allowing the CO2 to dissolve swiftly in the aquarium water.The integrated bubble counter helps monitor the CO2 dosage visually. A general guideline is approximately 20 mg of CO2 per liter, which equates to roughly 10 bubbles per minute for every 100 liters of water.EHEIM CO2-diffuser 400ideal for small to medium aquariums up to 400 lThis compact and efficient device features a built-in bubble counter and a non-return valve. It's simple to connect and attach to the aquarium glass using a suction holder.Benefits:Compact, space-efficient designHighly effective diffusion processBubble counter for easy CO2 dosage monitoringNon-return valve to stop water from flowing back into the CO2 systemHose protection featureSturdy suction holder