So, I have had my mixed reef tank for about 10 years now, keeping a wide variety of SPS and LPS. Tank seems pretty good, but not great to me. My acroporas (about 15 different ones) are doing ok, but don't have the extension or color that I'd like. Been measuring salinity with a cheap $10 hydrometer for the whole time, keeping the salinity at 1.026 (or so I thought...you know where I am going with this). The other day on Boston Reefers I saw an inexpensive refractometer for sale, so I bought it. I bought some fresh BRS salinity standard to calibrate it. This device told me my salinity was 1.030, which is the upper limit of what's supposed to be ok. So, what to do? Will I see improvements by dropping my salinity to a more normal range? Does anyone know? Looking for opinions on the importance of keeping salinity at 1.025-1.026 versus 1.030.