Planted Tank Guru
Join Date: May 2015
Location: Forest City ON, Canada
Posts: 2,430
Try and look for CaSO4 from a brewing supply store, it's a very fine powder and dissolves relatively easily.
I was always using KHCO3 from a brewing supply store. very fine granules, CaSO4 from a brewing supply store, very fine powder and MgSO4 generic drug store brand that resembled course ground salt you put on a steak.
I mixed them up a day ahead, or at least the morning ahead of a water change, and would bring the remineralized new water up to the tank temp before performing a water change.
"No Ice? Just Freeze Some Water"
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