Just wanted to add my 2 cents on this topic - Iodine absolutely improves the health of LPS coral without a doubt in my mind. I spent a lot of time going back and forth because of the amount of people on here swearing Iodine has no impact. I was low on an ATI test, so went with their recommendation and holy crap everything perked right up.
The duncans and hammers showed improvement the most.
Now let me caveat this by saying it is the scariest thing in the world to even work up the courage to dose this stuff. I would absolutely never dose it routinely, and would only trust ATI tests to give me accurate results to even come close to trying to know what a dosing schedule could be. I would just dose reactively and not routinely if I were the majority of reefers out there.
The duncans and hammers showed improvement the most.
Now let me caveat this by saying it is the scariest thing in the world to even work up the courage to dose this stuff. I would absolutely never dose it routinely, and would only trust ATI tests to give me accurate results to even come close to trying to know what a dosing schedule could be. I would just dose reactively and not routinely if I were the majority of reefers out there.