Aquarium Test Strips monitor 5 different variables that are significant for aquarium health: pH, Alkalinity, Hardness, Nitrate, and Nitrite. The special pH test pad is designed for low-ionic and low-buffered waters present in aquariums. These test strips can be used to test both freshwater and saltwater ponds and aquariums. Our aquarium test strips measure water hardness due to calcium carbonate and can help you determine whether you have hard or soft water in just seconds.
NOTE: For the nitrite test pad, the unit of measure is nitrite, not nitrite-nitrogen