Tetra Test NO3 Nitrate Test Kit

Tetra Test NO3 Nitrate is a simple to use kit for determining nitrate levels fresh and saltwater aquariums.

It is a liquid type of kit which works by changing the colour of a water sample in relation to the nitrate concentration.

You simply need to compare the colour of the sample to the easy-to-read colour chart to determine the nitrate level.

Always read the instructions carefully before use.