6 chemical indicators including NO3, NO2, GH, KH, pH and Chlorine, can be tested simultaneously on one test paper.
Easy to use, soak in water for 2 seconds, then take it out, lay the test strip horizontally for 30 seconds, compare with the color chart on the bottle to obtain clear and accurate water quality results.
The box contains 50 pieces of test strips, high-quality fiber paper provides instant and reliable results.
Suitable for Aquarium, fish tanks, and ponds water quality testing.
Test weekly with these 6 in 1 test strips, it is important to test often to verify good water quality for your fish.