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Coralife Deep Six Hydrometer The Coralife Deep Six Hydrometer is an easy-to-use tool for measuring the specific gravity and salinity of saltwater aquariums. Designed with a precision swing-arm mechanism, it provides quick readings to help hobbyists maintain proper water conditions for marine fish, corals, and invertebrates. The hydrometer features a wide measurement range and a clear, easy-to-read scale, making it a convenient and affordable option for routine salinity monitoring in reef and saltwater systems.
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🇺🇸 Ship from USA · On Agora since 2025
$19.99