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Re: [APD] KH question
Where I live now my tap water has KH below 1. I don't add anything
to "buffer" it. I use 40 ppm of CO2 in the tank, and the pH hasn't
changed enough to cause either the fish, shrimp or plants to complain.
Incidentally, to buffer a solution requires adding a substance that
resists increases in pH and a substance that resists decreases in pH
- always two substances. Adding just one, like bicarbonates, only
shifts the pH higher, it does not buffer the solution to a specific pH.
I just felt a need to be pedantic there. Sorry.
On Nov 19, 2006, at 10:20 AM, Liz Wilhite wrote:
> I moved recently and went from tapwater with a KH of 9 to tapwater
> with a KH
> of 2. The KH in the tank with aragonite is about 6, but the Eco-
> tank is running about 3. I am just getting my CO2 up and running
> again and
> I have a question: with a KH of 3 do I run a risk of the pH
> crashing? If I
> need to raise the KH, could I expect to see a consistent, stable KH
> level if
> I added a bit of crushed coral to the canister filter?
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