Tetra Test 6-in-1 Strips Aquarium to Test 6 Essential Water Quality Parameters in Less Than 60 Seconds, Pack of 25

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  • KH - KH acts as a pH-buffer and the favourable KH values are between 3 and 10 dH
  • Measures the pH, general and carbonate hardness (GH + KH), nitrite (NO2-), nitrate (NO3-), and chlorine (Cl2)
  • pH - The pH value of the water indicates the acid or base concentration that is important for the health of the fish; a pH value between 6.5 and 8.5 is tolerated by every freshwater fish species

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