API Freshwater Hardness GH & KH Test Kit

API Freshwater Hardness GH & KH Test Kit

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$11.00
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$11.00
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  • Tests tap water & freshwater aquariums for general hardness (GH) and carbonate hardness (KH).
  • Helps prevent fish stress caused by rapid pH shifts, the result of low levels of KH.
  • Box of one test kit