Reef glossary
Salinity
Salinity is measured in parts per thousand (ppt) or as specific gravity. Reef tanks run about 35 ppt (specific gravity ~1.026 at 25 °C). A calibrated refractometer is the reliable tool.
Reef glossary
Salinity is measured in parts per thousand (ppt) or as specific gravity. Reef tanks run about 35 ppt (specific gravity ~1.026 at 25 °C). A calibrated refractometer is the reliable tool.