Do you use ph buffers with co2 injection? - The Planted Tank Forum
 
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post #1 of 2 (permalink) Old 03-22-2005, 11:59 PM Thread Starter
 
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Do you use ph buffers with co2 injection?

I'm wondering if anyone uses crushed coral or similar carbonate buffers on their co2 injected tanks? I converted over to planted from a rift lake tank and I left the crushed coral in the filter. I've been meaning to take it out to keep the ph lower as it was hovering around 7.6. I've got my diy co2 going pretty well now and it's dropping my ph to around 7.0. Should I keep the coral in the filter, or would I be better off without it? I have about 1/2 pound mixed in with the substrate as well.
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post #2 of 2 (permalink) Old 03-23-2005, 12:08 AM
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It depends on if your water has enough KH/GH. If tap water kh>=3, gh>=5, then you can remove the crushed coral. But it is not going to hurt if you leave it there. You DON'T need to target a specific ph value, just inject enough CO2 for your plants.


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