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Old 11-20-2004, 12:02 PM   #1
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refractometer vs hydrometer

ok, i need to buy something to measure my salinity. i have read that refractometers are much more accurate, however, it seems that most of the folks on this forum use hydrometers.

if money is not a factor what are your suggestions and why?
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SW - 75 gal
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Approx. 200lbs Sand (3-4" DSB)
RO/DI unit - 110 GPD

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Old 11-20-2004, 01:07 PM   #2
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definately a refractometer. hydrometers are notoriously inaccurate. Here is the one I use.
http://www.premiumaquatics.com/Merch...ode=Hydrometer
It works great.
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Old 11-20-2004, 01:19 PM   #3
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cool. i just went online and ordered a refractometer. thanks.
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SW - 75 gal
Amiracle SL-350 Wet/Dry (no bio-balls)
AquaC EV-180 Skimmer w/Mag 7
2ea Maxi-Jet 1200 & 2ea Maxi-Jet 900 PH
Captive Purity Refractometer w/Calibrator
LCD Digital 250 W Titanium Heater
48in Coralife 4x65 watt PC
Won Pro Heat II
Tunz level alarm
Approx. 200lbs Sand (3-4" DSB)
RO/DI unit - 110 GPD

Please feel free to advise me!
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Old 11-20-2004, 01:38 PM   #4
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Any time.
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Old 11-20-2004, 03:13 PM   #5
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Thats the same refractometer I have Kurt. I love it!
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Old 11-20-2004, 04:08 PM   #6
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And me :P
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Old 11-22-2004, 12:57 PM   #7
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Me too. No more tapping the outside of my hydrometer to get the bubbles off the needle Well worth the money.
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Old 11-22-2004, 01:49 PM   #8
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Think I'm in for one here soon.
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Old 11-22-2004, 03:42 PM   #9
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I used a hydromoter for years until I won a refratomoter. I found my hydromoter to be approx .0025 off. So a reading of 1.025 was really 1.0225 or 1.0275. I cant remember if it was high or low.
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Old 11-22-2004, 06:57 PM   #10
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FishFreek. Didn't your refractometer come with a calibration screw? Mine was a liitle off but once I calibrated it with RO DI water, it reads exactly the same as my hydrometer, only way faster.
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