Refractometer Calibration - Lesson Learned

[Captured Moments]

Wouldn't it be OK to recalibrate using RO or distilled water and ensuring that it reads zero?

[Dresden]

I found a ton of topics and it sounds like the further from 35pt you calibrate from the greater the level of inaccuracy.

http://www.reefcentral.com/forums/sh....php?t=2644005