AccuraSea salinity reference gives you no excuse not to calibrate refractometers

For a hobby that is founded on reproducing the needs of saltwater animals, reef and marine aquarists are woefully undereducated about what salinity actually is, and how to accurately measure it. So many problems with chemical and mineral imbalances in…

4 Marine Aquarium Problems That Sneak up on You

There’s an old saying that only bad things happen quickly in a marine aquarium. That’s certainly true enough, but it’s also important to keep in mind that some problems that can affect the health and wellbeing of livestock tend to…

We can only recommend Red Sea’s Refractometer for measuring aquarium salinity

A couple years ago we were really thrilled when D-D came out with the first ever aquarium refractometer that is calibrated for seawater salinity, a true aquarium salt measurement device that trumped all the salt-water refractometers that we were using…

Using the Dupla Marin hydrometer as a hardware salinity reference

The Dupla Marin high resolution Hydrometer came along at a time when we are really becoming quite critical about salinity measurement. This large, oversize hydrometer is specially designed to measure seawater salinity at 25C/77F but only between 33 and 38 parts…

Dupla Marin calibrated hydrometer reads specific gravity in high resolution

It’s been a looooong time since Dupla made waves in the reef hobby outside of Europe but its new Dupla Marin Hydrometer, a new high-precision and accurate hydrometer, might get them back on the map. You may be asking yourself “why…

5 Tips for Maintaining Stable Salinity in a Saltwater Tank

While salinity and other water parameters are relatively constant on the natural coral reefs, they’re highly prone to undesirable fluctuation in the closed system of a marine aquarium. As conscientious hobbyists who want to provide the most naturalistic environment possible…

A Step-by-Step Guide to Mixing Saltwater

The foundation of any saltwater aquarium is, of course, the salt water itself, and through your time in this wonderful hobby, you’ll be mixing up plenty of it! You’ll need it when you first fill your aquarium and quarantine tank,…

Shorty buckets of Seachem Salinity shipping soon, three buckets up for grabs right now

Seachem Salinity has recently become of the highest grades of synthetic salt mix available to reefers. Although Seachem Salinity first shipped in a large bucket that mixed up 200 gallons, curious reefers eager to get in on the premium salt…

Salinity shortstack bucket coming Winter 2010 from Seachem

The Seachem Salinity shortstack is a great option for those of you not needing a huge supply of salt. The diminutive bucket still gives you a lot of spread making up around 120 gallons of water at a salinity of 35…

D-D’s seawater refractometer might be the only one scaled for seawater, not saltwater

As far as we can tell, D-D’s Seawater refractometer is perhaps the ever such device that is scaled and calibrated for use with seawater. “That’s crazy talk” you say as you peer upon your aquarium refractometer which was likely designed…