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Old 11-19-2014, 08:44 PM   #1
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Best refractometer under $50

I want to purchase a refractometer and was hoping for some suggestions

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Old 11-19-2014, 09:06 PM   #2
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You can find them pretty cheap off of ebay I've been told. Places like craigslist or any local vendor forums may provide such to you as well.
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Old 11-19-2014, 10:00 PM   #3
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You can find them pretty cheap off of ebay I've been told. Places like craigslist or any local vendor forums may provide such to you as well.
is this one good enough?
Portable Salinity Refractometer for Fish Tank 0 10 Hydrometer Tester Meter | eBay
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Old 11-20-2014, 12:01 AM   #4
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I've heard good things of the eBay ones as well. You just want to calibrate it more frequently.


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Old 11-20-2014, 12:29 AM   #5
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I have used refractometer before. It will be accurate only if it is calibrated properly. If you notice the graduation is just too small. I am not sure why would it be considered as accurate when you can hardly see where exactly the reading falls into. The most important thing in reef keeping is not to deviate too much from its parameter. IMO as long as you use the same salinity equipment and keep the same readings on both, it is all that matter. I now use the regular salinity tester.
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Old 11-20-2014, 12:44 AM   #6
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I have used refractometer before. It will be accurate only if it is calibrated properly. If you notice the graduation is just too small. I am not sure why would it be considered as accurate when you can hardly see where exactly the reading falls into. The most important thing in reef keeping is not to deviate too much from its parameter. IMO as long as you use the same salinity equipment and keep the same readings on both, it is all that matter. I now use the regular salinity tester.
If you cant see exactly where the line on the refractometer is then you're either not focusing it properly, bought a bad brand, got a faulty one, or have very bad eyes.

The refractometer I bought off eBay has a crisp well defined level on it and hasn't needed to be recalibrated since I bought it a year and a half ago. Couldn't be happier.. especially since it cost about $25

By regular salinity tester do you mean hydrometer?
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Old 11-20-2014, 10:54 AM   #7
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If you cant see exactly where the line on the refractometer is then you're either not focusing it properly, bought a bad brand, got a faulty one, or have very bad eyes.

The refractometer I bought off eBay has a crisp well defined level on it and hasn't needed to be recalibrated since I bought it a year and a half ago. Couldn't be happier.. especially since it cost about $25

By regular salinity tester do you mean hydrometer?
So what refractometer do you recommend?
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Old 11-20-2014, 11:08 AM   #8
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So what refractometer do you recommend?
Sorry, wasnt at home when I posted last night. The refractometer I have is a sybon.
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Old 11-20-2014, 11:12 AM   #9
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Sorry, wasnt at home when I posted last night. The refractometer I have is a sybon.
can you find the refractometer that you're referring to? the one sybon that I found is more than $25
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Old 11-20-2014, 11:17 AM   #10
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can you find the refractometer that you're referring to? the one sybon that I found is more than $25
Looks like the price either went up on them or I got a heck of a deal

This is the one I have

Sybon Heavy Duty Salinity Refractometer FG100SA w ATC | eBay

... Still *technically* under $50
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