Tetratec Comfort-Hydrometer

The TetraTec Comfort Hydrometer, supplied by Mangroves and More is the ideal accessory for measuring marine aquarium salinity and ensuring that your marine fish and aquarium corals have the stable conditions they need.

Aquarium salinity is just as important for making up new water for water changes and the salinity of the Aquarium with its inhabitants.

The TetraTec Hydrometer makes it simple to accurately check the salt content of water, giving precise readings over a wide temperature range (20 – 29°C). It works by measuring the specific gravity (relative density) of the water, and converting this to salinity.

All you need to do is fill up the hydrometer with water, and read the value off the scale printed on the side.