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Pond Care GH & KH Test (Liquid) contains: Two dropper bottles for accurate dispensing of test solutions, Easy-to-read instructions, Non-staining glass test tube with snap-tight cap.

The general hardness (GH) and carbonate hardness (KH) of pond water should match that of the natural habitat of the fish. Otherwise, fish will be stressed and prone to disease. Since adding tap water increases the hardness of pond water, frequent GH and KH testing is essential.

The kit measures both general hardness (GH), the measure of calcium and magnesium in water, and carbonate hardness (KH), the measure of carbonate and bicarbonate concentrations.