Interesting post Adam. Ive been using Tropic Marin Pro salts for the last 6 months and am happy with them. I have been keeping my salinity measured around 1.025/26. It seems like I end up dropping when I add corals after acclimation due to not getting new saltwater into the tank before the ATO starts running, causing me to mix salt in the corner overflow. Corals seem happier right after I add salt, though not sure if its any coincidence or not. Do you run anything else through your systems like GFO? Past build threads on your new system, I thought I only saw lots of live rock, calcium reactor and skimmer.