Refractor calibration
- Thread starter Cflip
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jason2459
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It's entirely possible your refractometer was far off. It's also possible the calibration solution you bought is off. And entirely possible the truth is somewhere in between.
Making your own is relatively simple with a decent scale.
https://www.reef2reef.com/threads/does-your-calibration-solution-need-calibrated.250133/
Check then double check! Iv calibrated mine before then days or even hours later it was off. Not sure if it's due to temp or bumping the refract Im in the habit of checking more than once.Cal solution is cheep enough.
jason2459
Not a paid scientist
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Bumping can effect calibration. Otherwise the only refractometer I've owned which is many that just would not hold it's calibration with out any known outside force was the redsea refractometer. It was terrible and looks like many others have had the same issue.
Otherwise even cheap brine and brackish water refractometers common in this hobby have held up better for me and my vital sine / vee gee refractometer being the best at holding its calibration for me. DDH2Ocean was pretty good too but the vee gee refractometer I prefer over it.
