Vertex Refractometer. I didnt calibrate it for a month and it shifted my reading by 0.002 which is why i did a salinity shift.
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- 33 Gal - 20Gal Sump, MP10/Hydor Powerheads, Aquaticlife 4x T-5HO, Vertex IN100, TLF w/Biopellets, Tunze ATO
-45GAL Build in Progress!-
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