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Salinity

Specific gravity is the measure of relative salinity or the amount of dissolved salts in your aquarium water in comparison to pure water. Being reef aquarists you all be aware of the importance of maintain a constant specific gravity in order not to stress the inhabitants of your aquarium. Measuring specific gravity on a regular basis is essential to keep up the idyllic environment for your aquatic inhabitants. It is important that you never ignore this fact even if sometimes you might think it is not as important compared to the other factors that need to be taken care of in a reef tank.

Any ignorance in maintaining specific gravity in a tank can result in stressing or imperfect nurturing of your corals and other aquatic pets. The best way of keeping it perfect and constant is by keep a regular check on them. Most aquarists use either a simple hydrometer or a refractometer to measure salinity. For proficient results consider a portable refractometer or a high tech electronic salinity monitor.

Grid List
  • Apex Conductivity/Salinity Calibration Solution 53000 uS - Neptune Systems
    Apex Conductivity/Salinity Calibration Solution 53000 uS - Neptune Systems $2.95
  • Seawater 35 ppt Refractometer Salinity Calibration Solution - 60 ML - Aquacraft
    Seawater 35 ppt Refractometer Salinity Calibration Solution - 60 ML - Aquacraft $6.99
  • HI98319 Salinity & Temperature Tester - Hanna
    HI98319 Salinity & Temperature Tester - Hanna $69.00
  • Salinity Refractometer w/ Calibration Fluid - Generic
    Salinity Refractometer w/ Calibration Fluid - Generic $24.95
  • Digital Seawater Refractometer MA887 - Milwaukee
    Digital Seawater Refractometer MA887 - Milwaukee $114.00
  • Digital Seawater Refractometer MA887 w/Protective Case - Milwaukee
    Digital Seawater Refractometer MA887 w/Protective Case - Milwaukee $136.00
  • Apex Lab Grade Salinity Probe - Neptune Systems
    Apex Lab Grade Salinity Probe - Neptune Systems $124.95
  • Seawater Refractometer - Red Sea
    Seawater Refractometer - Red Sea $59.99 $53.99
  • 35 ppt Salinity Calibration Solution Packs HI70024P (25 x 20 mL) - Hanna Instruments
    35 ppt Salinity Calibration Solution Packs HI70024P (25 x 20 mL) - Hanna Instruments $25.50
  • Apex PM2 - Salinity, Temperature, I/O Expansion Module - Neptune Systems
    Apex PM2 - Salinity, Temperature, I/O Expansion Module - Neptune Systems $84.95
  • Apex Conductivity/Salinity Calibration Solution 53000 uS (5 Pack) - Neptune Systems
    Apex Conductivity/Salinity Calibration Solution 53000 uS (5 Pack) - Neptune Systems $14.95
  • Salinity Refractometer Calibration Fluid, 53.0mS/1.026SG - American Marine
    Salinity Refractometer Calibration Fluid, 53.0mS/1.026SG - American Marine $8.99 $7.64
  • AccuraSea Refractometer Calibration Solution (250 ml) - Two Little Fishies
    AccuraSea Refractometer Calibration Solution (250 ml) - Two Little Fishies $11.04
  • ATC Seawater Refractometer - DD Aquarium Solutions
    ATC Seawater Refractometer - DD Aquarium Solutions $54.99
  • Refractometer Calibration Standard (60 ml) - Brightwell
    Refractometer Calibration Standard (60 ml) - Brightwell $7.99
  • LED Lighted Salinity Refractometer w/ Calibration Fluid
    LED Lighted Salinity Refractometer w/ Calibration Fluid $34.95
  • PINPOINT Salinity Monitor Complete Package - American Marine
    PINPOINT Salinity Monitor Complete Package - American Marine $129.95 $110.46
  • Digital Refractometer for Seawater Analysis (HI96822) - Hanna Instruments
    Digital Refractometer for Seawater Analysis (HI96822) - Hanna Instruments $180.00
  • PINPOINT Salinity Monitor - American Marine
    PINPOINT Salinity Monitor - American Marine $119.95 $101.96
  • PINPOINT® AC Adapter Kit 110 VAC - American Marine
    PINPOINT® AC Adapter Kit 110 VAC - American Marine $11.95 $10.16