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
Summarized by Shop
Tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Helps detect stress on fish caused by rapid pH shifts, which result from low KH levels and helps aquarists duplicate the natural habitat of their fish.