CO2 and Water hardness - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 5 Old 02-22-2012, 11:00 AM Thread Starter
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CO2 and Water hardness

Hey does anyone understand and could they explain how co2 reduces water hardness?
Im a bit dim on this one!

Bill
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post #2 of 5 Old 02-22-2012, 11:13 AM
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I'm no expert myself... but I don't believe CO2 will affect the hardness of water. It will, however, lower the pH.
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post #3 of 5 Old 02-22-2012, 11:28 AM Thread Starter
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Ok thanks mate.... any ideas how it actually does lower the pH? I have a general hardness of 13.5 and really need to soften the water!

Bill
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post #4 of 5 Old 02-22-2012, 11:47 AM
CO2 lowers the pH because it is acidic. If you have hard water though it will not lower the pH very much. I least not much before the CO2 level poses a risk to the fish. Only way to really soften water is to use a RO/tap mix.

.... I'm probably drunk.

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post #5 of 5 Old 02-22-2012, 12:45 PM
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You can read more here:
http://www.tropicalfishkeeping.com/f...quarium-73276/

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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