I'm using a refractometer to test my salinity, calibrated before use, and I am about 5 points off??im at 35 on the button, and its reading 40. I just got my controller tonight. I know the ORP is going take some time to acclimate to the tank, but I didn't see anything about the salinity probe needing this time. By the way, I set it up by the book. Using the calibration on the probes when called for.
Looking for any help, thanks in advance.
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