The Fauna Marin KH/Alkalinity test enables the very precise determination of the carbonate hardness of the aquarium water with an accuracy of 0.1 °dH via titration. The easily recognizable color change is from turquoise blue to pink.
The details:
- Measuring range: 0.1 – 20 °dH
- Resolution (accuracy): 0.1°dH
- for high-precision determination of carbonate hardness/alkalinity in the aquarium
- Measurement in °dH (conversion table for other units included in the instructions for use)
- sufficient for approx. 100 applications at 0.2 °dH resolution or 50 tests at 0.1 °dH resolution (and at 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 value increases, other basic ions such as hydroxide ions also contribute to alkalinity. The carbonate hardness should be checked very regularly in all aquariums. If the alkalinity in the aquarium is too low, a drop in the pH value (acid drop) can occur, which can be life-threatening for many fish and invertebrates. In reef aquariums, sufficient carbonate hardness is essential for strong coral growth. On the other hand, excessive carbonate hardness in seawater tanks can lead to limescale precipitation and also have a negative impact on coral growth.
*In water chemistry there are several terms to describe the buffering ability with different definitions. The term “carbonate hardness” is used 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 (such as the equivalent unit milllival per liter (mval/l) or the amount of substance in mmol/l) can be found on the cover page.
In the oceans, the carbonate hardness is 6.5 °dKH. In a saltwater aquarium, the carbonate hardness should be between 6 and 9°dKH.
Measures in case 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 contents :
- 10 ml reagent A
- 50 ml reagent B
- 1 glass cu¨vette 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!
