Sybon Refractometer FS:
I have a Sybon unit I got with a tank I bought, I cleaned it up and calibrated.
I have one already so this is FS for $25 no case tester only.
Looks like this >> https://encrypted-tbn0.gstatic.com/i...AW7GiTT9aNBbRH
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Hey! I never "LEFT" the hobby, just doing fresh water now. Which is still listed as part of Canreef if I'm not mistaken. 
Last edited by The Guy; 03-28-2015 at 07:26 PM.
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