This professional set consists of nine different water tests for aquarists and pond owners. Contains the following tests:
* pH value (pH)
* total hardness (GH)
* carbonate hardness (KH)
* ammonium/ammonia (NH4/NH3)
* nitrite (NO2)
* nitrate (NO3)
* phosphate (PO4)
* iron (Fe) and
* copper (Cu) or chlorine (Cl)
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