I was going to do a water change today but my refractometer is garbage. Well I'm about to throw it in the garbage. It doesn't hold calibration and while it says it's equipped with "integrated automatic temperature compensation", it doesn't act like it. So I ordered a new one off Amazon with good reviews and I'll compare the two. We shall see. FYI the one that sucks is sold by RedSea, their ratings for this refractometer on Amazon are not very good. I'm bummed I had to use my months aquarium allowance to replace equipment but I guess it's better to have everything ready for when I stock the tank.
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