"Chris Gentry" wrote in message news:gSU9e.6442$WI3.995@attbi_s71...
Again - reinventing the wheel! Please quote a single salt manufacturers
mixing instructions advocating adding buffers first and then mixing
salt...

Actually there are some salt mixes that are designed to be
used with regular tap water. (This taken from Anthony
Calfo's book on coral propagation.)

I would be interested in which one this would be...
And how do you define tap water... There are some
places where water is "hard" and contains a lot of
calcium/magnesium salts and there are different
places where water is softer, with less TDS...