salt mix

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…

New Marine Depot Staff Member Junior’s First Months on The Job Were a Trial By Fire

I was intrigued but quite overwhelmed. Terms like protein skimmer, sump, refugium, copepods, and ATO, Kalkwasser were completely foreign to…

5 Simple Steps to Making Your Own Saltwater

Today we'll explore some time-tested techniques that make mixing saltwater for your marine or reef aquarium easier and more consistent…