API GH & KH Test

Aquatics Galore Verified independent store

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GH & KH General & Carbonate Hardness Test Kit - Freshwater Tests tap water and freshwater aquariums for general hardness (GH) and carbonate hardness (KH). Helps detect stress on fi sh caused by rapid pH shifts, which result from low KH levels and helps aquarists duplicate the natural habitat of their fish. Show more