Measures both general hardness (GH) and carbonate hardness (KH) for comprehensive water analysis
Simple drop-by-drop colorimetric testing for easy and accurate results
Includes two test bottles and all necessary reagents for immediate use
Clear instructions and test tubes ensure reliable, repeatable testing
Helps prevent fish stress and health issues caused by rapid pH shifts
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API GH/KH Test Kit
The API GH & KH Hardness Test Kit includes everything you need to measure the general and carbonate hardness of your aquarium water. Water hardness is a measure of the dissolved mineral content of water.
There are two types: the general hardness (GH) and carbonate hardness (KH). When keeping freshwater fish and plan
