Originally Posted by
laserjim
A boatload of people are having this problem. I just ended up calibrating my 2 refractors with refractor calibrating fluid. Got my tank to 35ppt, and then did the calibration, instead of sticking it in the calibration fluid when it tells you too, I stuck it in my tank, I knew it was 35ppt. Hit ok, Bingo, 35ppt on Apex ! Its shame they don't fix this problem, and it is, a problem, just look at all the post here, and on Reef Central, and any other forum. Stray voltage, lol.
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