Sera gH Test

The sera GH-Test is a water test to check the total hardness in the freshwater aquarium, as well as in the garden pond.

Determine water values
pH value, carbonate hardness (KH), ammonium and nitrite are among the most important water parameters. Extreme deviations from the target values can suddenly become an acute danger to life. Whenever the appearance or behaviour of the fish is conspicuous, or other peculiarities (eg sudden dying of aquatic plants) in the aquarium are noticeable, the basic water values should be checked first. For routine control, the easy-to-use test strips can be used. For more accurate results, we recommend the test of the sera aqua-test box in a sturdy plastic case. Total hardness, nitrate, nitrite, phosphate, iron, copper, chlorine, silicate and oxygen should be known to the experienced aquarist as averages in his aquarium. Checking these values every now and then is usually enough. If suspected (eg poisoning, algae problems, shortness of breath) these parameters should be examined more closely.

In the habitat of most fish, the soil is rather low in minerals. In many parts of the world, however, it is the other way round. Water is hardened by the minerals magnesium and calcium dissolved in the rain. With the sera GH test, the total hardness can be determined quickly and accurately.

Our expert Oliver Knott recommends:

With the sera GH test, you can check your GH value very precisely using a drop test!