Carbonate Hardness is the sum of multivalent metal ions in solution available. Carbonate hardness plays a very special role in aquaristics as KH is related to the pH value and the CO2 concentration. These factors influence each other. In an aquarium the carbonate hardness serves primarily to buffer the pH value in the neutral range and thus to avoid acid drops or pH increases.
Our kH test kit is Australian made and comes packaged with quality glass recepticles rather than single use plastic. Shelf life of 12 months whjen stored correctly in a cool dark place.
Carbonate Hardness (kH) Water Test
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