My LFS recommended a switch from Red Sea blue bucket to tropic marin pro salt after reviewing my ICP test. They felt that some of my trace elements would be better replenished via wc with TM instead of dosing (iodine amongst others). Bought a bucket yesterday so here goes nothing. Wish me luck. I’ll see how it goes and plan on starting an all for reef regimen. Will do another ICP in a month or so to see if it’s made any improvements.