Sera NH4/NH3 Test Kit Ammonium / Ammonia - 60 tests Aquarium Fish Tank
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Sera NH4/NH3-Test (ammonium/ammonia Test) Sufficient for approx. 60 measurements. Ammonium and ammonia mainly arise from fish waste. They are converted into each other depending on the pH value. While ammonium is mostly harmless, ammonia is toxic to fish. The sera NH4/NH3-Test allows monitoring the total concentration of both (the actual ammonia level can be calculated according to the pH value the using the included chart).