Co2 fertiliser



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.

With a choice of three complete sets, EHEIM offers the ideal CO2 system to suit your aquarium.


the Co2-fertiliser unit by EHEIM, simply and reliably doses the necessary amount of Co2. For an optimal and healthy plant growth in the aquarium.

including accessories:

  • Co2 bottle
  • Co2 precision pressure reducer
  • diffuser
  • set long-term test with indicator reagent and 3 test strips (5-times)



optional accessories (not included):

  • Co2 magnetic valve (night shut-off)
  1. Klick 230 V - 6064210
  2. Klick 24 V - 6064380 (powerLED+)