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Old 09-09-2015, 07:32 PM   #11
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Get a reliable refractometer .
Salinity Refractometer: Fish & Aquariums | eBay
SG is the simplest and most often tested parameter.
Get it right and then it will help you along the way.
You SG is not traveling as much as your readings indicate IMO.
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Old 09-09-2015, 07:33 PM   #12
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Errors when testing due to air bubbles on the arm of the hydrometer. Not really that big of a deal while cycling. I would want to spend my money on a refractometer asap. They can be found pretty cheap on ebay and Milwaukee makes a digital one that I use and simply love that I added to my list of saltwater toys.
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Old 09-09-2015, 07:49 PM   #13
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Errors when testing due to air bubbles on the arm of the hydrometer. Not really that big of a deal while cycling. I would want to spend my money on a refractometer asap. They can be found pretty cheap on ebay and Milwaukee makes a digital one that I use and simply love that I added to my list of saltwater toys.
I will check out ebay now and can i find a reliable one at my lfs if i cant order one off line?
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Old 09-09-2015, 07:54 PM   #14
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Milwaukee makes a digital one that I use and simply love that I added to my list of saltwater toys.
I'm on year 3 with my Hanna digital.
Funny thing is out of 3 different hydrometers my oldest(over 20 years) was the most accurate and all three were different(considerably without air bubbles !).
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Old 09-09-2015, 08:00 PM   #15
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I'm on year 3 with my Hanna digital.
Funny thing is out of 3 different hydrometers my oldest(over 20 years) was the most accurate and all three were different(considerably without air bubbles !).
What is the best one i can get quickly from my lfs because I dont wanna do anything until i know my exact SG and plus it'd be nice to get my live rock and power head and hydrometer or refractometer in one shot tomorrow?
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Old 09-09-2015, 10:17 PM   #16
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As long as you can get a refractometer with calibration fluid, you will be just fine. That said, I've never personally seen one sold at a LFS. If you have a great one, they might have them. I think the cheapest I've ever seen is 35 bucks off of ebay and the Milwaukee digital was 100. I wasn't even aware of Hanna's TBH.
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