Date: 03/15/2010
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Hydrometers
Hydrometers allow the measurement of specific gravity or salinity of your saltwater.
Marine and reef aquariums normally have a specific gravity ranging from 1.021
to 1.024 with natural seawater usually at 1.026.
Refractometers are super accurate and are recommended for measuring
specific gravity of saltwater in reef aquariums.
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Aqua Packs
Our Aquarium equipment kits with unique ebook instructions.
