HANNA Marine MAGNESIUM Checker - Mr. Saltwater Tank - Raw, Uncut and First Impressions

In this episode of our series, Mr. Saltwater Tank - Raw, Uncut, and First Impressions (RUF), Mark will look at the Marine Magnesium Checker from Hanna Instruments. Join us as we run a blind test on Mark's tank with this checker - we'll show you how easy it is to use, what we like about it, and discuss how often we'd use it to test magnesium in our tank.