The Living Sea Hydrometer is very important to care for right kind living conditions in your fish. Using the hydrometer is very important to test specific gravity of aquarium water and to verify all replacement water has the similar salinity as your aquarium. The Living Sea Hydrometer is a handy gizmo for keeping up your aquarium environment.
Ensures right kind gravity of aquarium water
Ensures all water has the similar salinity within aquarium
Glass Hydrometer; Measures Celsius and Fahrenheit
8 inches tall