pH question for the experts - The Planted Tank Forum
 
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post #1 of 6 (permalink) Old 02-11-2004, 04:06 PM Thread Starter
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My pH drops from 7 to 6.6-.6.7 by morning (lights on). Is this normal? I know pH drops at night, but should it drop this much?
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post #2 of 6 (permalink) Old 02-11-2004, 05:06 PM
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I think that is still okay. Do you have soft water? Have you turned back the CO2? I don't remember if you use pressurized, but perhaps you can turn it off at night, or find some other means of reducing the CO2 influx during the night time.


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post #3 of 6 (permalink) Old 02-11-2004, 06:33 PM Thread Starter
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I do have pressurized CO2 and leave it on at night since my controller is set for 7 it never comes on at night. I was thinking about getting a air stone and pump. What are your thoughts on this?
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post #4 of 6 (permalink) Old 02-11-2004, 10:01 PM
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That could work. I favor little powerhead over airpumps, but either way you can get more surface agitation at night, which will help reducing the pH drop.

I think 6.6-6.7 vs 7 is still "okay". How are the fishies doing? If they seem alright I would keep monitoring, but not worry too much about it yet.


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post #5 of 6 (permalink) Old 02-12-2004, 02:40 AM Thread Starter
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The fish appear to be doing ok. I just added a small power head and will give an update on Thursday.
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post #6 of 6 (permalink) Old 02-12-2004, 05:29 PM Thread Starter
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At lights off I was at 7.1, but that was .1 too high for me (jacking with the controller). In the morning I was at 6.8. I threw a flashlight in there to see if the fish were at the top gasping for air. I freaked them out to say the least, but they were at all levels.

I am going to watch it for a couple days and take note, but I am feeling better to say the least. I do feel that I was lacking big time in water movement and should have known better. From reading other posts I am sure that the lack of water movement is/was a contributing factor in my blue-green algae that hangs out in small parts of my substrate. I just ordered a new Eheim 2126 and once this gets in I am thinking of doing a 3 day black-out to get rid of the stuff if it's not gone by then. I think it enjoys an environment with low oxygen levels and since I was being a retard and supplying this environment it stuck around.
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