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GH & KH Test Kit
An API titration test kit that measures general hardness (GH) and carbonate hardness (KH) in freshwater aquariums. GH readings reveal calcium and magnesium levels while KH (alkalinity) readings show the water buffering capacity that stabilizes pH, helping aquarists match their fish natural habitat conditions. Includes GH and KH test solutions, two test tubes, and instructions.
Price: $15.99 USD
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