Time to stock up. 2+ years ago I bought all of the salt from a fish store going out of business on the cheap. I think I paid $20 for 150 gal of mix. I'm finally down to my last 200 gal. So now I'm spoiled and still cheap. (This said as dumb dumb over here is finishing up a 300 gal reef.

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Sooo, does anyone know where to get salt cheap? I'm not a real salt snob so I'm pretty flexable on brand. I just like to stay consistant once I'm using it. I'm OK with buying a lot if the price is right. Maybe some sort of Chicago area group buy if anyone knows how to coordinate it? Any ideas spring to mind?
Oh, I'm currently running Seachem.