xinumaster
reef addict
I'll take 1 black refractometer and 2 calibration fluids.
Actually, there is [to a saltwater standard] - because most hobby refractometers are not meant to measure seawater. [but can do a fine enough job ... but IMO best to calibrate to closer to our desired-endpoint vs. at the zero end of the scale]<a href=showthread.php?s=&postid=8702229#post8702229 target=_blank>Originally posted</a> by Vincerama2
Hmmm... I always calibrate with RO/DI water. Put some one it and "zero" the visual line. I don't think there is really any calibration beyond that, is there?
<a href=showthread.php?s=&postid=8712784#post8712784 target=_blank>Originally posted</a> by Kinetic
i'm also in berkeley, I have a few things to get from phong, maybe we can coordinate.