So can you use ro water to calibrate a refractometer? I'm due to check mine and i'm all out of calibration fluid that came with it.
I did not know there was calibration fluid... I have always used rodi. Lol
I did not know there was calibration fluid... I have always used rodi. Lol
Here why many use calibration fluid
Refractometers and Salinity Measurement by Randy Holmes-Farley - Reefkeeping.com
I have been calibrating my refractometer for 2 years with RO/DI water. I received some calibration fluid yesterday from BRS and calibrated it with that.
When calibrated with RO/DI water, my tank water was reading 1.026.
When calibrated with calibration fluid, my tank water is reading 1.023.
That is a huge difference! Calibration fluid is cheap and I will only be using it from now on!
Double wow! Looks like i'll be getting calibration fluid after all. Thanks Glenn and Greg.