so here is the short deal. i will be going back to red sea salt as it fared best out of every one. there is no qualitative data yet but just through observations red sea kicked arse and I.O. did the worst. go figure.
i took detailed notes and tons of pics so i will catch this up when i get back. congrats to red sea and they have a R.O. formula that i am going to switch to as soon as my salt stash has been used.