Thanks Bolo Tran. I have a big skimmer and feed a lot. I dose 2ml of salifert amino acids, six drops of KM iron, and iodide everynight, or before every large feeding. I try to dose in small amounts every day to keep everything as stable as possible. The iodide is lugol's solution and I dilute the bottle 1 drop iodide/4 drops water so I can dose 3/4 of a drop of the original molarity solution every day because one drop would go over the recommended dosage. I don't use Zeovit or any other fancy products, I do have a calcium reactor though. As for the salt I use Tropic Marin Pro and mix it in a plastic bucket for a day with a heater. While mixing I add dkh buffer and calcium. I also add a lot of magnesium in the tank, not in the bucket because it makes all the calcium parcipitate out of solution.