Tetra Test Oxygen Test Kit

Tetra Test Oxygen Test Kit

Tetra Test Oxygen (O2) is a simple to use kit for determining oxygen levels. It is a liquid kit which works by changing the colour of a water sample in relation to the oxygen concentration. You simply need to compare the colour of the sample to the enclosed colour chart to determine the oxygen level. It is advisable to test oxygen levels first thing in the morning as this is when they are likely to be lowest.