+1.shellies215 said:You don't need to start with a large number. Just get 5-6 and a bunch of shells.
Baking soda raises KH and stabilizes pH. It usually also raises pH, but maxes out at about 8.2 or so. Epsom salt raises GH and has no effect on pH. See Practical Water Chemistry in the forum library.Bodenhimer said:baking soda for ph hike and epsom salt to keep ph up to level