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Waterlife Seadrometer
Includes float tube and protective
carry case for hydrometer.
SeaDrometer
For the measurement of seawater salinity
The measure of salinity (saltiness) levels in water is Specific Gravity (S.G.). The SeaDrometer is a scientific instrument used to measure the correct salinity level for the type of marine creatures in your set-up. The fishes' indigenous region dictates the level of salinity they will tolerate. e.g.
| REGION S.G. |
Range Tolerated
|
| Indo Pacific |
1.018 to 1.022
|
| Caribbean |
1.020 to 1.025
|
| Red Sea |
1.028 to 1.034 |
If the S.G. reading is too low, add Waterlife Ultramarine sea-salt to increase the S.G.
If the S.G. is too high for the species being kept, add fresh-water.
N.B. Always effect changes to S.G. of your system gradually so as not to cause shock to your fishes.
Info:
• Easy to use method of measuring the S.G. of your marine system
• The SeaDrometer has a good range (1.010 to 1.030)
• It is an accurate measure of salinity (accuracy 0.002)
Temperature Corrections for Standard Floating Hydrometers
For standard floating hydrometers, the impact of temperature on the density of the sample can be corrected with a table, assuming that we know how the density of the sample would change with temperature (which is well known for seawater), and also that we know the hydrometer's temperature of standardization. For example, a hydrometer calibrated at 60°F/60°F needs to be corrected for the difference in density between the sample at 60°F, and the sample at the temperature at which it is tested. If the actual sample were measured at 86°F, then the correction is the ratio of seawater's density at 86°F (approximately 1.0217 g/cm3) divided by the density at 60°F (approximately 1.0259 g/cm3), or 0.996. Thus, a specific gravity reading, or more correctly, a hydrometer reading, of 1.023 would be corrected to an "actual" reading of 1.027.
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