Why test for pH and Alkalinity?
pH is the measure of water acidity. A pH reading of 7.0 is neutral. A pH higher than 7.0 is alkaline, and a pH lower than 7.0 is acidic. The ability of water to withstand changes in pH is called buffering capacity. Based on a method of measuring buffering capacity, it is referred to as the alkalinity of seawater. Since the ocean has almost an inexhaustible supply of buffers, it can take up large amounts of acids without a noticeable change in pH. The same, however, does not apply in the closed system of an aquarium, where buffering agents can quickly get used up by calcareous algae and invertebrates. Maintaining your aquarium at the proper pH and alkalinity ensures optimal water quality. Directions for pH Test • Fill sample pipette to base of bulb with aquarium water to be tested and dispense to a test cavity of the test plate. • Add one drop of Marine pH Reagent and stir briefly. • Read pH from chart. Directions for Alkalinity Test • Fill sample pipette to base of bulb with aquarium w
