Key Parameters - pH

pH is the measurement of hydrogen ions (H+) in water, it is the concentration of these H+ ions that will determine if water is acidic or basic (basic is the correct term for alkaline). The scale for measuring the degree of acidity is called the pH scale, which ranges from 1 to 14. A value of pH 7 is considered neutral, neither acidic nor basic; values below 7 are considered acidic; above 7, basic. The acceptable range for fish is normally between pH 6.5-9.0. The ideal range for cyprinid fish is above pH 7.0 at around pH 7.5- 8.0.