I updated my google doc. I attempted to make
a more simple calculator for everyone to dose any trace element. This system has worked very well for me to date. I think 4+ years now. I just aim to keep the minerals above zero, and try to keep the major elements fairly close to NSW. It doesn't seem to matter much to my corals otherwise. Let me know if there are mistakes, but I think the math is correct.
@Randy Holmes-Farley
-note, I've noticed that I usually have to dose quite a bit more than the calculations come out to. I think, maybe some is lost as precipitation or other chemical reactions. Maybe some is also lost in rapid usage by the corals. Such as, Iodine, Iron, Manganese, Nickel, Vanadium I struggle to keep above zero, and I just keep increasing the dose (within reason). So it's kind of a improved version of trace element dosing from a bottle, as you have a bit better control. Oh, and it's super super cheap (except for strontium, that's quite expensive, $80/year for my 300g tank).