too much co2? - The Planted Tank Forum
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post #1 of 5 (permalink) Old 01-31-2004, 01:39 AM Thread Starter
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\i have very hard water so hard the tetra test doesn't want to register and have recently added co2. I have dropped my ph from 8.3 to 6.7 with my reactor 1000. While adding the co2 I noticed some pearling when the ph was about 7.3 or so. I have set my target for around 6.8 and noticed now I have no more pearling but my plants look to be doing fine. Can too much c02 kill pearling? Thanks for the read Rich
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post #2 of 5 (permalink) Old 01-31-2004, 03:55 AM
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No but it can kill your fish. If you see them gasping at the surface, cut back.

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post #3 of 5 (permalink) Old 01-31-2004, 04:10 AM
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Better yet, go to a chart or to Chuck's page and calculate what the target pH is. In general, a drop of 1.0 pH is about right, I think.
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post #4 of 5 (permalink) Old 02-01-2004, 04:46 PM
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if you have that much CO2, you probably used up nitrates and other necessary the plants look ok, but aren't going 'gang busters' and pearling everyday.
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post #5 of 5 (permalink) Old 02-01-2004, 07:28 PM
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What is the kH of your water? That's a huge drop in pH unless your kH is very low. Also what is the resting pH of your water source? To obtain the resting pH fill a container with water and let it set. Test at 12 and 24 hours.
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