CO2 Injection with buffered substrate? - The Planted Tank Forum
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post #1 of 3 (permalink) Old 03-12-2018, 01:24 PM Thread Starter
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Question CO2 Injection with buffered substrate?

Hi all,

May seem like a silly question, but I have wondered if you can run CO2 injection with a buffered substrate when the PH is already at 6-6.5?

My current 25lt tank did have a small CO2 setup, but the PH dropped to around 5.5 and I then couldnít use the DC or chart correctly.. or so I believe...

I currently have some Crystal Red Shrimp with Chilli Rasbora that seems to be doing fine, but am unsure if the injection messed up the balance early on? Of the videos Iíve seen, everyone seems to be using tap water and not remineralisation of RO...


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post #2 of 3 (permalink) Old 03-12-2018, 01:51 PM
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I run CO2 with a buffering substrate (Aquasolum) and just don't worry too much about the pH. Mine is so low that I can't read it on the API normal pH chart, but my fish are doing fine. I think most people will agree that as long as your fish and shrimp seem to be tolerating it well that you shouldn't fret over it, but I'd like to see if anyone has a different opinion.

My algae is the only plant that pearls.
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post #3 of 3 (permalink) Old 03-13-2018, 04:26 PM
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If it's Carbonate buffering co2 will accelerate the degradation of the product and increase KH more rapidly

Whether that matters or not is another question, probably not unless your tap already has too much KH, but then why would you be using a buffering substrate

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