API pH TEST KIT for freshwater aquariums test a wide range of pH levels from 6.0 to 9.0. Just dip a strip directly into your aquarium, and use the color-coded chart to determine if your water is safe ...

Is API pH test accurate? Use the API® pH TEST STRIPS as a quick and accurate way to test pH levels in your water. These test strips measure a wide range of pH, from 6.0 to 9.0 ppm, to help you keep ...