Breeding saltwater fish and taking care of corals requires very strict water parameters. To insure that the salinity level of your aquarium is exactly where it needs to be, a Refractometer is the most precise way, far more accurate than a simple hydrometer. A refractometer measures the concentrations of substances in aqueous solutions using refracted light. By using this instrument to refract light through a liquid, an angle will appear on a scale that shows you the amount of dissolved solids. Consisting of a prism assembly (to refract light), daylight plate, rubber grip, and eyepiece with focus adjustment, this Milwaukee refractometer is easy to use and read. Maintenance is easy; simply clean the prism with a soft cloth before and after each measurement. If you need to know the salinity of your aquarium as accurately as possible, try a Milwaukee refractometer.
