Red Sea Fish Pharm ARE21525 Marine Care Test Kit for Aquarium Marine care test kit includes all of the main kits you need to run a healthy marine aquarium Allowing you to easily monitor the nitrate, nitrite, ammonia, pH and alkalinity levels The easy-to-use tests come with simple instructions and color charts 100 Ammonia test with accuracy of 0.02 ppm, 100 and 60 nitrate test with accuracy of 2 ppm and 0.05 ppm 100 pH test with accuracy of 0.2 ppm, 55 alkalinity test with accuracy of 1 dKH/0.36 meq/L