Tetra Test 6 in 1

Test strips for the determining (literally in seconds!) the 6 most important values in freshwater aquariums, now with an additional chlorine parameter.
TetraTest facilitates fast and precise checking of the 6 most important water values in your aquarium. All of the tests achieve accurate and authoritative results and have a large range.
The following parameters are tested:
* total hardness * carbonate hardness * nitrite (NO2) * nitrate (NO3) * chlorine (Cl2) * pH-value
(Test comes with 25 strips)