API GH & KH Test Kit Aquarium Water Test Kit 1-Count Perky Pets Did you know that your

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API GH & KH Test Kit Aquarium Water Test Kit 1-Count Perky Pets Did you know that yourKeep your fish healthy and thriving by testing your aquarium water s GH levels regularly with this easy to use API GH & KH TEST KIT for freshwater aquariums. Testing water parameters weekly helps prevent invisible water problems that can be harmful to fish. Water hardness is a measure of the dissolved mineral content of water. There are two types: the general hardness (GH) and carbonate hardness (KH). When keeping freshwater fish and plants the GH and