http://www.gsplantfoods.com/ocean-magic-sea-minerals.html

Here's some low sodium sea salt

There is at least 1 very long thread on IC in the Organic Hydro section on using sea salt as/in combo with ferts. Very interesting read. What I got out of it is that NaCl exclusive from the bath of other minerals found in seawater is not so good. But when taken as part of a whole the benifits are synergistic. I've played around with it in the past and just may come back to it again in the future.