The NT Labs Nitrate Water Test Kit will test for the nitrate level of all types of pond water.

Nitrate is produced by the beneficial bacteria in the pond and filters as they break down the fish's toxic waste products (Ammonia and Nitrite).

Nitrate is not toxic to pond fish, but excessively high levels can affect their reproduction.

High levels of Nitrate can cause Blanketweed in your pond.

Comprises: 30 tests approx