Aquarium Solutions Accuprobe Hydrometer
$14.99
The Aquarium Solutions Accuprobe Hydrometer measures salinity (specific gravity) in saltwater aquariums.
Why We Use It
A simple, inexpensive way to check salinity during water changes and top-offs.
Use: Rinse with fresh water after each use. Double-check against a refractometer or digital tester now and then.
