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05/09/2012, 06:00 AM
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#1 |
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Moved On
Join Date: Mar 2012
Posts: 112
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Anyone use Crystal sea marine mix bioassy how to mix it ??
Anyone use Crystal sea marine mix bioassay formula
how to mix it ?? water impurity how many gm ??? because when mixing as package says 1Ib / 4 gallons .. don't give 1.023 as it say |
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05/09/2012, 06:04 AM
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#2 |
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Reef Chemist
 
Join Date: Apr 2001
Location: Arlington, Massachusetts
Posts: 81,937
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What did you get?
How are you measuring specific gravity?
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Randy Holmes-Farley Club 65535 Current Tank Info: 120 mixed reef |
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05/09/2012, 06:30 AM
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#3 |
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Moved On
Join Date: Mar 2012
Posts: 112
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2 HYDROMETERS ... one floating and other needle
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05/09/2012, 06:49 AM
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#4 |
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Reef Chemist
Join Date: Apr 2001
Location: Arlington, Massachusetts
Posts: 81,937
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How far off of 1.023? Maybe the hydrometers are just off, which is very common.
I'd check them with a DIY standard, or get a conductivity probe or refractometer that you can calibrate.  This has more: Reef Aquarium Salinity: Homemade Calibration Standards http://reefkeeping.com/issues/2004-06/rhf/index.htm
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Randy Holmes-Farley Club 65535 Current Tank Info: 120 mixed reef |
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05/09/2012, 07:00 AM
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#5 |
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Moved On
Join Date: Mar 2012
Posts: 112
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i checked them with saline standard 0.9% which give 1.006 SG and 8.6ppt
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05/09/2012, 07:52 AM
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#6 |
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Reef Chemist
Join Date: Apr 2001
Location: Arlington, Massachusetts
Posts: 81,937
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Unfortunately, I don't know exactly what that should read on a seawater hydrometer, and it is far from where you want to read, so it isn't the best thing to use anyway.
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Randy Holmes-Farley Club 65535 Current Tank Info: 120 mixed reef |
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