60 Tests - Detects very low levels of Nitrate from 2.5 to 100 ppm (NO3- ion) in both marine and freshwater aquariums. Easy to real color scale greatly improves accuracy. Test weekly. A must for the reef enthusiast!
Other Items from Red Sea Test Kits Red Sea Marine Lab - Red Sea Reef Lab - Red Sea PH&Alkalinity - Red Sea Ammonia - Red Sea Nitrite - Red Sea Nitrate-ll - Red Sea Phosphate - Red Sea Calcium - Red Sea Copper - Red Sea Magnesium -