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Test Kits/Electric testers/Salinity Refractometers

API GH/KH Hardness kit

API GH/KH Hardness kit
API GH/KH Hardness kit

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.  

$ 17.95
 
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