Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
I would make sure the GH is about 2-3 German degrees of hardness, and the KH is the same.
Aerate your well water before you do any large water changes. I would run it into a barrel or garbage can and alter the GH and KH in there.
Seachem Equilibrium is a good GH booster, there are others. Read the ingredients, I understand some have salt (sodium chloride) which you do not want.
Potassium bicarbonate is a good material to raise the KH, or baking soda will work, too.