Water Chemistry
Specific Gravity
A measure of water density used to track salinity in saltwater and brackish tanks.
Reef tanks typically target around 1.025 specific gravity. It is read with a hydrometer or, more accurately, a refractometer.
A measure of water density used to track salinity in saltwater and brackish tanks.
Reef tanks typically target around 1.025 specific gravity. It is read with a hydrometer or, more accurately, a refractometer.