MAGNUM MEDIA announces the release of a true ‘Seawater’ calibrated refractometer. What’s different between our refractometer and others you might ask? Almost all, if not all, of the refractometers currently available to the aquarium hobby are d…
MAGNUM MEDIA announces the release of a true ‘Seawater’ calibrated refractometer. What’s different between our refractometer and others you might ask? Almost all, if not all, of the refractometers currently available to the aquarium hobby are d…
