API GH and KH Test Kit

Name: Play It Koi API GH and KH Test Kit - API GH and KH Test Kit
Brand: Play It Koi
SKU: 29081642765
Price: 15.98 USD
Availability: InStock
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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 the KH of aquarium water should match the...