Hello! Last week, I started dosing with PurpleUp by CaribSea to help promote coralline algae growth on the few pieces of live rock I have. I was wondering if... 1) Anyone else has used this stuff and to what out come 2) Should I stop dosing with Kent calcium, iodine & S&M since PurpleUp boasts that it contains "super sea calcium", and "also replenishes iodine" and contains "strontium, magnesium, and carbonate"? (taken from PurpleUp bottle) I know it's possible to overdose calcium, but can you overdose iodine and S&M? What happens if calcium levels are too high? Iodine? S&M? Thanks in advance! Jason D.