API Nitrate (NO₃) Test Kit measures nitrate concentrations from 0 to 160 ppm in freshwater and saltwater aquariums. Monitoring nitrate can help evaluate accumulated waste, the nitrogen cycle, and the need for water changes.
Package and Test Procedure
Includes nitrate liquid reagents, a capped test tube, instructions and color card. Accurate shaking is especially important: API nitrate reagent bottle #2 must be shaken vigorously for the time specified on the instructions before dosing, and the mixed sample must also be shaken and allowed to develop for the instructed period. Insufficient mixing can produce an incorrectly low reading.
Important Testing Notes
Use the included procedure and water-type chart; do not substitute the directions for ammonia or nitrite kits. Monitor nitrate according to the needs of your fish, plants or reef system, rather than assuming one target suits all livestock. Rinse tubes and never return used reagents to the aquarium. Check expiration dates on the packaging.
