Tetra Test 6in1 Water Test StripsKeep your aquarium water parameters in check with Tetra Test 6in1 Water Test Strips. These convenient and easy to use test strips provide comprehensive analysis of six key water parameters, ensuring optimal conditions for your aquatic pets. With a simple dip and read design, you can quickly assess levels of pH, nitrite, nitrate, carbonate hardness (KH), general hardness (GH), and chlorine in your aquarium water. Regular testing with Tetra Test 6in1