Designed to raise the alkalinity (carbonate hardness (KH) or buffering capacity) of freshwater and planted aquariums at a pH of 7.8 or lower.
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KH (carbonate hardness) helps to stabilise the pH in the aquarium.
Water with low KH is susceptible to rapid pH shifts, greatly stressing fish and increasing the risk of disease.
The API KH Test Kit tests fresh or saltwater aquariums for carbonate hardness (KH), and helps monitor water quality and prevent invisible water problems that can be harmful to fish and plants.
Carbonate hardness stabilizes aquarium pH, and can be used to determine the proper dose of pH buffers.
Suitable for freshwater and saltwater aquariums.
Test kit includes:
1x KH test solution
1x glass test tubes
1x easy-to-ready instructions
Fill the test tube to the indicated line with aquarium water.
Holding the test solution bottle vertically, add the KH solution one drop at a time.
Be sure to count the number of drops being added.
Cap the test tube and invert several times after each drop.
The test is completed when the water in the test tube, after having been shaken, turns from blue to yellow.
The KH is determined by the number of drops of test solution that must be added to turn the water in the test tube to turn from blue to bright yellow.
i.e. four drops of KH solution (the amount of drops it took to turn the solution from blue to yellow) = a KH level of 4