View Full Version : measuring salinity
Bear44
06/09/2011, 02:12 PM
http://cgi.ebay.com/Salinity-Refractometer-0-10-Salt-Water-Marine-Aquarium-/270762969925?pt=LH_DefaultDomain_0&hash=item3f0abb0b45
or
http://cgi.ebay.com/TAAM-HYDROMETER-Aquarium-Floating-Type-Thermometer-/260749140679?pt=LH_DefaultDomain_0&hash=item3cb5dc22c7
which of these two should i go with?
porksmash
06/09/2011, 02:14 PM
The Refractometer, most definitely. That price is a little suspicious, though. Normally they are $40 and up.
S13<3
06/09/2011, 02:22 PM
the hydrometer is seriously overpriced and junky, petco sells the same one for 3.19
i bought the sera marin hydrometer from fosters and smith, and i couldnt be more pleased, it reads all the way from 1.000 to 1.040, is easy to use, doesnt need special calibrating fluid and can never go bad!!! i used to use a POS swingarm hydrometer and never again, also compared to the sera marin the swing arm was reading almost 3 points higher when the water really was 3 points lower :(
mikecc67548
06/09/2011, 02:22 PM
I like this:
<iframe width="560" height="349" src="http://www.youtube.com/embed/lo8JQWj5vJg" frameborder="0" allowfullscreen></iframe>
geccles
06/09/2011, 02:24 PM
Refractometer. Also, pick up some calibration solution so you can calibrate to 1.026
firebirdude
06/09/2011, 05:20 PM
lol. Refractometer. Not even close. Can't believe there's even a topic on this. But welcome to RC. :)
OregonReefer
06/09/2011, 07:41 PM
I used a hydrometer back in the 80s when I had a FO tank, along with a plenum, crushed coral and a wet/dry filter
Go with the refrato... even a cheap one is better than the floater
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