If you do some research, you'll find that there's a lot of professional coral keepers and scientists that will tell you iodine is needed. You'll also find just as many that say it isn't needed. Strontium is one I haven't read much about, but if there's any correlation between lack of Strontium and White Band Syndrome, I've never read it.
IMO, most trace elements are replaced or replenished, with weekly or bi-weekly water changes. These trace elements are present in most salts that we purchase.
IMO, most trace elements are replaced or replenished, with weekly or bi-weekly water changes. These trace elements are present in most salts that we purchase.
