The fantastic Tetra Quick Test 6 in 1 pond test kit is the fastest & easiest way to find out if your pond water quality is safe for your fish. Good water quality is the key to healthy fish & a trouble free pond environment. The Tetra Quick Test 6 in 1 pond test kit is much quicker than traditional pond test kits. It offers a perfect solution & tests for 6 essential water quality parameters in less than 60 seconds. Tests for general & carbonate hardness nitrate (NO2) nitrate (NO3) Chlorine & p H value Easy to use