KH check:the KH (temporary hardness) indicates the content (measured in degrees) of calcuim and magnesium carbonates, needed to stabilize the pH. A good value of KH allows to maintain constant the pH level. Often the KH value stretches lower; to correct it, you can use Wave Top KH.Freshwater and marine water.
(continue)
CHECK KH - DUREZZA TEMPORANEA
AZZURRA SET 30-40-50
)
