lowering PH without Chems - The Planted Tank Forum
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post #1 of 4 (permalink) Old 08-11-2004, 07:09 AM Thread Starter
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lowering PH without Chems

I have very hard tap water with a PH around 7.8 - 8. I would like to lower and soften it in a 29 gallon without using Chem's. It has an eclipse filter and I was thinking about adding peat to the filter. Thoughts? Risks? Other methods?

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post #2 of 4 (permalink) Old 08-11-2004, 07:29 AM
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I have not had any success with using peat to lower pH. The only way I have done this successfully is to start with reverse osmosis water (I buy it for $.33 a gallon from Walmart) and add Electro-right to replace trace minerals in the water.
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post #3 of 4 (permalink) Old 08-11-2004, 12:43 PM
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Peat might lower the pH, depending on the peat used and the kH of the water. But you will never be able to actually control how much.

Your best bet is going to be a pressurized CO2 system.

BTW, if your natural tap water pH is 7.8-8.0 your water is not that hard. Hard is when it has a kH of around 10° or more. You should know your kH and gH before you start trying to adjust the water.
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post #4 of 4 (permalink) Old 08-11-2004, 01:26 PM
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Not to get too geeky, but you can't change the pH without chemicals - peat releases organic acids (chemicals), CO2 is a chemical, baking soda and phosphate based products (pH down) are chemicals. As a chemist, I just had to respond. I think you may have meant "natural" products vs. "manmade" products, but in this case I think even that is a stretch. Rex is right on - you need to know the chemistry when you start - kH, gH, pH, etc. before you start changing it.


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