help fish start dying

[reefgirl189]

Originally Posted by SeaHorse_Fanatic

I knew a local reefer who completely wiped out her tank because her 4 hydrometers were all off and by the time she checked with my refractometer, her tank's salinity was 1.012 or brackish.

Ugh... that sucks. It's also a mistake I've made. I let my little guy play with the refractometer a few times and forgot to check calibration of it after. It was quite low, reading 1.019 when it should have been 1.026. Luckily everything was okay but I let it go on for far longer than I should have. Hopefully that's the worst mistake I make with this hobby...