When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of aquarium water should match their natural habitat as closely as possible. The API GH & KH TEST KIT helps you measure the levels in your aquariums!
If you notice any omissions or errors in the product information on this page, please use the correction request form below.
There are currently no written reviews for this product.
We ship to all 50 US states, Canada, and select international destinations through our partner Neokyo.