API® KH Carbonate Hardness Test Kit — 90 Tests Iku Koi Kichi Maintains a healthy balanced ecosystem

Maintains a healthy balanced ecosystem and reduces pond maintenance

Require no lubrication and are certified for outdoor use

Perfect for outdoor relaxation

All three will not only add to the beauty of your pond

API® KH Carbonate Hardness Test Kit — 90 Tests Iku Koi Kichi Maintains a healthy balanced ecosystemAPI KH Carbonate Hardness Test Kits test tap water in fresh or saltwater aquariums for carbonate hardness (KH). Carbonate hardness stabilizes aquarium pH, and can be used to determine proper dosage of pH buffers. Helps monitor water quality and prevent water problems that can harm fish Includes liquid dropper bottle, glass test tube with cap, color chart and instructions For use in fresh and salt water Makes 90 tests Safety Data Sheet Manual