Planted Tank Guru
Join Date: Sep 2004
Location: Garden City, KS
So are those specs that you're giving us, above, is that how the water comes out of the tap, or are those the specs of your tank, after the crushed coral? I mean, if you have very soft water and you're trying to raise the hardness, there are better ways of doing that. Crushed coral is not commonly used in planted tanks.
But whatever, the ends justify the means. If things are working for you, then don't change anything. Just keep monitoring the hardness. If it ain't broke, don't fix it.