Sera kH Test

Makes it easy to monitor the carbonate hardness in fresh and salt water.

Makes it easy to monitor the carbonate hardness in fresh and salt water.

For approx. 390°dKH. In case of too low KH values we recommend sera KH/pH-plus (in fresh and marine water) or sera pond bio balance (in ponds), in case of too high values we recommend filtering through sera super peat (in freshwater aquariums).