Testing salinity with hydrometer

Nano_Man

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Hi everyone
How many people still use glass hydrometer and how accurate do u think they are ?
 
Hi everyone
How many people still use glass hydrometer and how accurate do u think they are ?
Been using them for 30+.
More accurate than a refrac, imo.
TM at 77 reads 1.0265 in my system. At 80 it will read 1.0269. The difference is .0004.
Most tanks are run at 77-80 so the temp adjust is not really an issue and even if you use temp adjust its still simple to do.

Refractometers require calibration and are subject to user error, imo.
 
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Depends entirely on which hydrometer, and with any device, including hydrometers, it is worth checking the accuracy at least once with a good standard suitable for that device. :)
 
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