All my corals in my tank look bad because my salintity was at 1.024 and my refractormeter was no working right so I a ordering something new, which one would be better the Hanna salinity pen or Milwaukee refractometer.
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All my corals in my tank look bad because my salintity was at 1.024 and my refractormeter was no working right so I a ordering something new, which one would be better the Hanna salinity pen or Milwaukee refractometer.

