Fluval Sea Hydrometer

Product details

Fluval Sea Hydrometer is a marine aquarium test device designed to measure specific gravity and salinity. In a saltwater tank, those readings help you keep the salt level consistent, which is useful when checking evaporation losses, planning water changes, or verifying that makeup water (from top-off or mixing) matches your target conditions. The hydrometer is intended to be simple to read and practical for day-to-day use.

Features:

• Measures specific gravity and salinity for marine aquariums
• Easy-to-read scale with clear markings for quick verification
• Compact form factor that fits easily in typical aquarium setups
• Can be installed inside the tank for continuous, in-place monitoring
• Can also be used as a portable device when you want to measure at different times
• Helps support routine checks that maintain stable salinity-related conditions in a reef or marine system

Specifications:

• What it measures: Specific gravity and salinity
• Readability: Easy-to-read, clear markings
• Design/use: Compact; can be used installed in the tank permanently or used as a portable device