High Tide Aquatics

using a refactometer help

Ok got mine in the mail today. I an trying to calibrate it using the liquid they gave me. The numbers of the test liquid are:

35ppt refractive index
53 mS/cm - 53.0mS
Calibration/Reference Fluid
Refractive index of 1.3394
77degrees/25degrees

So do I use this and calibrate the refractometer to 1.3394?

If so my tanks salinity is 1.32????? amd my test water from the LSF is 1.4???? This doesnt seem right to me
 
thanks, my corals are looking good tonight, added a top off yesterday, and looks like my top off brought it right to 1.026, hence why they are looking better today :) This thing is sure easier to read than a hydrometer. Seem my hydrometer was off .01, from what I've been hearing thats not too bad. But good to know the exact amount now for sure.
 
Yup, 77 degrees.

I was just being lazy, figuring on tank temps close to that, and a temperature compensating refractometer.

For people that haven't read this article before:
http://reefkeeping.com/issues/2007-03/rhf/

Especially:
http://reefkeeping.com/issues/2007-03/rhf/index.php#13
http://reefkeeping.com/issues/2007-03/rhf/index.php#14
 
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