Hanna

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…

Types of Test Kits: Which one is Right for You?

Testing your aquarium is one of the fundamental practices required to maintain a stable aquatic environment. There are three types…

Testing Out the New Hanna PH Checker

I was excited when I heard that Hanna was releasing this new device. Luckily, I was offered a sample Hanna…

Hanna announce long-awaited Low Range Marine Nitrate tester

At last, the one we’ve all been waiting for, the Marine Nitrate Low Range Handheld Colorimeter from Hanna Instruments is…

Salinity Measurements in Aquariums

Alkalinity is one of the most widely tested parameters in saltwater aquariums. It is often the first water parameter many…

Aquarium Water Testing and Why it Matters

Not all aquarium life requires the same water parameters. It is critical for success to know which species you are…

How to Use Hanna Checker Colorimeters to Dial In a 2-Part Calcium & Alkalinity Dosing Regimen

Maintaining proper water chemistry is arguably one of the more difficult aspects of keeping a healthy captive reef tank. Thankfully…

Testing Test Kits: We Compared 5 Popular Aquarium pH Test Kits—Here Are the Results

For our test kit evaluation, we used a “blind” test panel of three persons. We knew what the pH levels…

Salinity Measurements in Aquariums

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