Okay, call me old school. When I started out in this hobby 25 years ago, it was 78 degrees & a salinity of 1.021 according to Martin Moe.
12 to 15 years later with Julian Sprung, Charles Delbeek, Martin Moe Jr., etc. it was believed that lower temperature & lower salinity was better. So I went from 78-79 degrees in my reef to 75-76 degrees and raised the salinity from 1.021 to 1.025. For the FO
tank, I went from 78-79 degrees to 77 degrees & from 1.021 to 1.018 salinity.
Based on R Shimek's articles, it seems like this is the wrong track again. I have relative success with the lower salinity in the FO
tank. It just seems like the osmoregulation principle makes sense and the lower temps have not been disadvantages to any of my tanks for a decade. What is everyone elses thoughts regarding the 82-84 degree & 1.024-1.025 salinity theory?