- -10%
Total hardness (GH) indicates the amount of dissolved calcium and magnesium salts in the water. These elements play an essential role in many physiological processes in fish, invertebrates, and plants.
GH also contributes to the stability of KH. Depending on the species maintained, a higher or lower GH value may be necessary, with some naturally living in hard water, and others in softer water.
Colorimetric test for total hardness (GH).
Suitable for freshwater aquariums.
Accurate monitoring of calcium and magnesium salts.
Simple reading through color change.
Two 10 ml bottles of test reagent, a measuring test tube, and an instruction manual.
Take a water sample using the provided test tube, add the reagent according to the instructions, then interpret the result to determine the GH value.
Keep out of reach of children. Dangerous. Strictly follow the safety precautions indicated on the packaging.