API GH & KH GENERAL & CARBONATE HARDNESS TEST KIT

When keeping freshwater fish and plants, the general hardness (GH) and carbonate hardness (KH) of the aquarium water should match their natural habitat.

The API® GH & KH Test Kit helps you replicate your fish's natural environment to prevent stress and keep them healthy!

Contains 2 test bottles, easy preparation instructions and glass test tubes.