Mark,
Thanks for the strontium info. Didn't you say you were dosing strontium along with iodine?
I have Tullock's book, first published in 1997, almost 10 years ago now. Used to have all of Baench's books, but I'm thinking they are as old or older than Tullock's book. Don't know how accurate their information would be after all those years, especially since marine aquarium scientists continue learning more as time passes.
I test Mg whenever I test for alk and Ca, usually every 10 to 20 days for all three reefs. Depending on the tank, Mg is usually low compared to Ca which is often stable in some tanks. Alk is often low, as well. Corals look so much better while increasing Mg that I can't imagine ignoring Mg levels like I used to.
Because uptake of alk, Ca and Mg varies from tank to tank, I'm not will to dose an all in one supplement.
I dose kalk for daily top up water, and adjust alk, Ca (if necessary) and Mg after testing. Also do weekly water changes of 15%, siphon out detritus from our BB tanks as well as perform other routine maintenance.
Anyway, what brand of test kits do you use for iodine and strontium, and what brand of iodine/iodide and strontium additives do you use?
TIA
