The Planted Tank Forum - View Single Post - Kent R/O Right vs Equalibrium?
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Old 12-04-2012, 12:15 AM   #7
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If your tap water is pretty much OK, just too hard (high GH, KH, pH, TDS) then start with a blend of tap water and RO.
Get the GH and KH where you want it. Maybe 25% tap + 75% RO? Whatever works!
Then filter it though peat moss to get the black water, organic acids that many soft water fish like.
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