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post #6 of (permalink) Old 05-30-2017, 09:50 PM
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I’m not trying to hijack this thread (sorry OP!), but assuming remineralized RO water and buffering substrate, how do you control the ph of water for a water change? Let’s assume the ph of the tank water is buffered down to 6.0 by the substrate, almond leaves, alder cones, etc… and the RO water is sitting stable at 7.0, can you just change 25% and assume all will be OK? Won’t that result is a sharp jump in the ph of the tank? I understand the tank will re-buffer to 6.0ish, but what about in the meantime?

I only ask because I plan on setting up some CRS tanks soon, and I've yet to understand this.

If you ever think you're too small to make a difference, spend a couple of nights sleeping with a mosquito.

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