Hey Link,
Just readin' a lil' of your journal, and you seem to freak out a lot! lol
Anyways, did you get a chance to test your fresh salt water mix? Salinity, Alk, CA, Mag.
Also, I have a larger system, so I opt to make my own 3 Parts using BRS stuff. Before, I usually like to use ESV B-Ionic 2 Parts + Mag, 1 gallon of each... this would last you a while for small tanks. Everyone's tank is different, but for reference to my 120 gallon with like 10 frags SPS, 10 frags LPS, and a decent amount of softies, I dose 50 mL Alk (ESV B-Ionic), 70 mL CA (BRS), 150 mL Mag (BRS). I am going to finish the switch to new Alk mix from local LFS using Soda Ash, and he said I will probably dose double to what I did with ESV stuff.