Alkalinity features the capacity-buffer, ie the capacity necessary for maintaining the pH value of the fresh and marine water.
It forms through the amount of hydrogen carbonates present in the water and with the increase in the pH value also through hydroxide ions.
A quantity of hydrogen carbonates too low can lead to a decrease in the pH value, a very dangerous to the life of many fish and invertebrates.
In the water aquarium the alkalinity should oscillate between 8 and 12? DKH (German carbonate degrees).
The new KH Professional test of Tropic Marin It is one of the most precise and allows you to determine the value of KH with a resolution up to 0.1 ° DH.
The high precision is given by the use of a 1ml syringe with a graduated scale marked in values of 0.01ml. The color quickly changes from turquoise to pink and is easily visible.
The content is sufficient for about 100 tests at a resolution of 0.2 ° DH in water with 10 ° DH or 50 tests at a resolution of 0.1 ° DH in water with 20 ° DH.

