water softener water - The Planted Tank Forum
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post #1 of 2 (permalink) Old 10-07-2009, 11:16 PM Thread Starter
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water softener water

I have a 40 G planted tank high tech with mostly amazon swords.

For my 50% weekly water change I use the soft water from the water softener. The GH is 3 from the tap.

Should I be using Equilbrium to raise GH to 5-9? Should I use some water bypassed from the water softener? Our town water is very hard.
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post #2 of 2 (permalink) Old 10-08-2009, 01:33 AM
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The water from a softener that uses salts is not ideal because it exchanges sodium for the hard water ions it takes out. These softeners exchange salt of one type (ie calcium, magnesium, sulfer, iron) for a sodium ion. The potassium based salts are less toxic to plants. I've heard of some people using them in planted tanks with no problem. I would just check your GH before a water change, and as long as your plants are not pulling out minerals you're fine. That being said it wouldn't hurt to use the equalibrium to raise your GH in the 5-8 range.
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