Refractometers
Refractometers - Once you use a Refractometer once, you will never use a flimsy plastic Hydrometer again. The ease of use, accuracy, say nothing of the "cool factor" Refracs are the only way to go for measuring you salinity in your saltwater aquarium.
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Fluval Sea Hydrometer

Regular testing is strongly recommended as stable salinity levels are essential for the health of ma..
$17.99 $7.99

Sea Side Aquatics Refractometer

Sea Side Aquatics RefractometerThe refractometer is on of most important pieces of equipment that an..
$52.50 $49.50
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