Thank you for your feedback. We have doubled the iodine concentration in All-For-Reef.
I will continue trying to optimize iodine concentration further but in my expectation it will not fit 100 % for every reef aquarium since iodine consumption is not linked to calcium and alkalinity consumption. In tanks with lots of Caribbean gorgonians the iodine consumption is extremely high while calcium and alkalinity consumption is quite low. So there is no way around analysing and optimizing iodine dosage for the individual tank.
What is new to us and what is not adequately reflected in literature and discussions is the importance of iodine for good polyp extension, coral growth and coloration. We take this new finding very serious and I will continue my research on this subject. I am convinced that some progress can still be made in this field. Keep your eyes open!