sera GH/KH-plus (275 g) - simultaneously increases general and carbonate hardness in a tropical aquarium. Allows hardening of R/O water or soft tap water directly, as well as balancing the natural consumption of mineral components. What's more, the parameters can be adjusted to your fish's requirements.
The precise achievement of the desired levels of these important environmental factors provides aquarium inhabitants with essential mineral substances such as calcium and magnesium, and effectively protects against dangerous sudden changes in pH values by increasing KH.