eSHa Aqua Quick test 6 in1 test strips

Healthy water = healthy plants and healthy fish. Good water quality is essential for the plants and fish in your aquarium or pond. With the eSHa AQUA-QUICK-TEST you can monitor five values that are critical for good water quality:
pH (acidity), KH (carbonate hardness), GH (general hardness), nitrite (NO2) and nitrate (NO3). It is important to understand what can cause abnormal values and what action you can take if the tape measure indicates that the water quality is not good.
For freshwater aquariums only.