Fauna Marin Aquahometest KH Alkalinity-Test

The Fauna Marin KH/alkalinity test enables the carbonate hardness of the aquarium water to be determined very precisely with an accuracy of 0.1 °dH per titration. The easily recognizable color change is from turquoise blue to pink.

DKK 211,39

Product not in stock - Estimated backorder time: 14 days



Product not in stock - Estimated backorder time: 14 days

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The details:

Measuring range: 0.1 – 20 °dH
Resolution (accuracy): 0.1 °dH
for highly precise determination of carbonate hardness/alkalinity in the aquarium
Measurement in °dH (conversion table for other units included in instructions for use)
Sufficient for approx. 100 applications with a resolution of 0.2 °dH or 50 tests with a resolution of 0.1 °dH (and with a KH of 10 °dH)

Carbonate hardness / alkalinity test PRECISION for saltwater aquariums

Measuring range: 0.1 – 20 °dKH

About carbonate hardness:
The carbonate hardness (KH)* or alkalinity* of a water sample characterizes the buffering ability, ie the ability to maintain the pH value of the water. It is largely determined by the proportion of hydrogen carbonate ions in the water. As the pH increases, other basic ions such as hydroxide ions also contribute to the alkalinity. The carbonate hardness should be checked very regularly in all aquariums. If the alkalinity in the aquarium is too low, the pH value can drop (acidity drop), which is life-threatening for many fish and invertebrates. In reef aquariums, adequate carbonate hardness is essential for vigorous coral growth.

*In water chemistry there are several terms to describe the buffering ability with different definitions. The term “carbonate hardness” is common in aquaristics; however, the alkalinity is measured. In this test, both terms are used interchangeably.

The carbonate hardness is usually given in degrees of German hardness (°dKH). A table for conversion into other common units (e.g. the equivalence unit milllival per liter (mval/l) or the amount of substance in mmol/l) can be found on the cover page.

The carbonate hardness in the oceans is 6.5 °dKH. In a saltwater aquarium, the carbonate hardness should be between 6 and 9°dKH.

Measures in the event of unfavorable values:
To increase the carbonate hardness if the values ​​are too low, we recommend using Fauna Marin Carbonate MIX or Easy dKH or ELEMENTALS KH in seawater. Let us advise you.

Package content :

10mL Reagent A
50mL Reagent B
1 glass cuvette 10 ml
1 dosing syringe 5 ml
1 dosing syringe 1 ml with attachment
1 instruction manual
To protect the environment, the reagents for the KH / Alkalinity Test PRECISION are also available as an inexpensive refill pack!