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#3
11-18-2011, 09:03 PM
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you can get calibration fluid, i would bet the refractometer is correct, my deep six hydrometer was out 4 points, it was reading 1.023 when actual was 1.027, my snails stopped dying after i corrected the salinity.
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Crap happens, that's why they sell toilet paper in 48 roll packs! 
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