10-22-2008, 05:50 PM
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water hardness is how much calcium and magnesium is present in your water. basically the only ways to get it to lower is with a RO unit. (Reverse Osmosis) you can also collect rain water an use active carbon to filter it for about a week or two. you can also use chemical free peat. peat can be unpredictable though. if you have plants, straight RO water won't work. if you do use all RO you must add your trace elements back or use a ratio of RO water and tap. its always easier to increase you ph but tougher to lower it and keep it stable. your buffer needs to be able to stabilize your ph.