Why is My Aquarium pH so High/Low?: How To Achieve the Proper Aquarium pH

Aquarium Testing Recommendations: A chart that lists all of the parameters we recommend testing for in the four main types of aquariums.

Aquarium Hydrometers, Refractometers, and EC Meters: Every saltwater aquarium requires a testing instrument to measure the salinity (salt level) of the water. To do so you will need either a hydrometer, such as the Coralife Deep Six Hydrometer; a refractometer, such as the MarineAndReef.com REEFractometer; or an electrical conductivity (EC) meter, such as the Hanna Salinity Tester.

How to ACCURATELY Test Aquarium Water: Good aquarists don’t maintain aquariums—they maintain water. And it is impossible to maintain your water without testing.

How To Accurately Test Aquarium Water: Jaron provides advice on how make sure your aquarium water testing is both precise and accurate.