Sera KH Test Kit

KH test is a quick test to determine the carbonate hardness in freshwater and saltwater aquariums and ponds.

It will help you to create a healthy aquarium/healthy pond with conditions close to nature.
The right water values are dependent on the fish stock and the plants in the aquarium/pond. Even if the water looks clear it can be contaminated. With bad values diseases or algae can appear in the aquarium/pond. To maintain a healthy aquarium/pond with conditions close to nature it is important to check and adapt the water values regularly.

Why test?
The well-being of aquarium and pond dwellers and the growth of aquatic plants depend to a large extent on the KH level being kept as constant as possible. The carbonate hardness is one of the most important water values since it keeps the pH level stable. The KH should never drop below 4 °dKH.


  • 15ml Dropper Bottle
  • 20ml Measurement Vial
  • Directions for Use

Sera KH Test Kit


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