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Old 12-17-2012, 11:37 AM   #6
wkndracer
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Once the GH is a higher value (>3) the kits are easier to read.
With soft water place a white sheet of paper under the tube with good area light, look through the top with the cap removed after each drop (it helps a bunch).

Adding GH booster with each water change should solve any issues you are seeing. Plants use very little Ca and Mg compared to everything else so once levels are set around 4-5dGH readings should remain there until removed at the next WC.

The mineral content that effects GH and KH are independent of each other so no real "need" to match them. I routinely set mineral content here for around 5dGH and 2dKH (have for multiple years now).
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