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Tropical Fish Word of the Day: Specific gravity
Expand your tropical fish vocabulary with the FishChannel.com Tropical Fish Word of the Day.
Specific gravity: (n.) A measure of the relative density of seawater to pure water (specific gravity = 1.000). Not synonymous with salinity. Saltwater aquarium keepers measure specific gravity with a hydrometer.
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Tropical Fish Word of the Day: Specific gravity
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