Tetra Test 7in1
quick and easy to use
early detection of problems
The Tetra Test 7in1 test strips allow you to check the water quality in your aquarium quickly, easily, and reliably. The test strips measure the seven most important water parameters: pH value, carbonate hardness (KH), total hardness (GH), nitrite (NO2), nitrate (NO3), chlorine (Cl2), and now also CO2 content. By combining the pH and KH values, the CO2 content can be easily read using the enclosed CO2 table.















