What is a Refractometer?

An aquarium refractometer is a device used to measure the specific density of your tank water. The density is measured in terms of salt saturation. If you are a saltwater aquarist, you will need to use a refractometer to measure the salinity of your fish tank. This equipment can get pricey but it’s a good investment for a serious aquarist.

Refractometer vs. a hydrometer

Compared to hydrometers, refractometers offer more accurate readings when measuring the salt level or salinity of your fish tank; as a matter of fact, you will still get accurate results even if your fish tank has low salt levels. And because they offer more accurate readings, they also help you maintain a healthier saltwater aquarium. They are also more portable and compact. This device is also easy to use.

As an aquarist, regular tank maintenance is very vital for the health and overall well-being of your aquatic pets. With the help of a refractometer, you’ll be able to easily measure your tank’s water parameters and figure out water chemistry problems as early as possible.