"Glenda" wrote in
ink.net:

My reason for requesting the SG was because of the additional minerals
present in the "sea salt", not just the salt to water ratio. In a

True, but most of the minerals affecting pH present in sea salt
preparations are carbonates and can be measured through your dKH instead of
judging based on your SG. There are a number of factors in a reef that
will affect your KH without affecting your SG.