Sera Marin Hydrometer
56.10 د.إ.
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To monitor the density of seawater simply
Salinity (salt content) can be inferred from the measured density.
Since the salinity of seawater in the aquarium must remain constant, the aquarium water should be checked regularly accordingly. The water to be tested is filled into a sufficiently tall water cup, and the submerged hydrometer is read according to its immersion depth.
Sera Marin Hydrometer
56.10