specific gravity

Salinity Meter: Calibration and How to Care for One

Salinity meters, whether hand-held or mounted inside the filter sump, are an easy way to measure salinity in your reef…

How to use a Refractometer to Measure Salinity

A refractometer is considered by many to be a more accurate way to measure salinity. In this article we discuss…

You’re Using The Wrong Test Kit: Why Aqua Medic’s Marine Lab Is Better Than ICP For Many Hobbyists

Aqua Medic Water Testing is the only service that does not use ICP machines to get results. We reached out…

Salinity Measurements in Aquariums

Salinity is one of the most widely tested parameters in saltwater aquariums. It is often the first parameter hobbyists test…