Hydrometers and refractometers

2 products

Aquarium hydrometers and refractometers measure water salinity, a fundamental parameter for the proper maintenance of marine tanks.

The correct salinity is essential for the health of marine fish and corals. A stable value ensures conditions similar to natural ones and prevents stress or imbalances in the hosted organisms.

Hydrometers are inexpensive and easy-to-use tools, suitable for quick checks. Refractometers, on the other hand, offer greater precision and reliability thanks to optical reading, making them the ideal choice for expert aquarists and complex reef tanks.

Both are indispensable tools for anyone starting or managing a marine aquarium. For measurement range, precision, and usage, consult the product sheets.

Tip: Take regular measurements and always at the same water temperature; even small variations in salinity can negatively affect corals.

— Tip from the Hobby Pesca & Acquari Team

$Whimar Refractometer with LED$ $Whimar Refractometer with LED$

€39,89

Professional high-precision refractometer with integrated LED light and automatic temperature compensation (ATC) for measuring salinity and density in marine and brackish aquariums. Ensures clear, ...

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SERA MARIN DENSIMETER - Seawater Density and Salinity Meter

€8,90

For easy control of marine water density in your aquarium. Precisely measures marine water density Displays salt content Easy to use with visual scale reading Ideal for marine aquariums 📖 ...