Pawfly 5 in 1 Aquarium Water Master Test Kit, Aquarium Water Test Kit Fish Tank Water Testing Kit for pH Nitrite Nitrate Ammonia & Phosphate, Aquarium Test Kit for Freshwater & Saltwater Fish TanksBrand: Pawfly Color: Multi colored Features: 5 in 1 Master Test Kit: Monitor all 5 critical water parameters pH, nitrite, nitrate, ammonia, and phosphate in one comprehensive aquarium test kit. The rigorous analysis helps you maintain an ideal haven for your aquatic friends Freshwater & Saltwater Application: This aquarium water master test kit works perfectly for both freshwater and marine fish tanks. Precise color matching charts are included simply