I’ve learned that it’s best to have two methods of measuring salinity so one device can check the other. Makes life easier and stress free. LOL
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I’ve learned that it’s best to have two methods of measuring salinity so one device can check the other. Makes life easier and stress free. LOL
But wait! Aren't they notoriously inaccurate/prone to error? Sure - if you don't treat them nicely.
The people at my LFS said it was the wrong refractometer and wasn’t one used for water salinity and yes I know about the thing about not mixing salt into tank. I’ve got 8 5 gallon buckets for that. The only reason I put a little salt in tank at the time was because I have no livestock in there atm^^^What Randy said!!!^^^
FWIW - you should calibrate your refractometer using a solution that is at 35ppt (1.026) and NOT RODI water. I use Pinpoint calibration fluid. It's inexpensive and if properly stored will last a very long time. Whenever you calibrate an instrument you will get the most accurate end result using a known source that is as close as possible to your desired end point as possible.
Also - no more mixing salt directly in the tank! Once you have living creatures in there adding dry salt directly to the water can really irritate most of them. That's the reason about 99% of us have a dedicated mixing barrel somewhere around the house! Mine is a 55g barrel that I've used for 30+ years now. It takes ~ 1 50g bag of IO or IORC + 6 cups to = 1.025 for me.