DIY CO2 running air pump at night? - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 01-28-2012, 09:44 PM Thread Starter
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DIY CO2 running air pump at night?

So I just finished my DIY co2 system after reading forum after forum. But one said to run an air pump during the night to make up for the o2 the plants put off during the day. So am I suppose to do that or turn my powerhead off or anything?

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post #2 of 7 (permalink) Old 01-29-2012, 05:16 AM
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Well at night plants reverse what they take in, so at night when there's no light plants stop taking in Co2, and start taking in oxygen. So that's why one would use an air pump at night, so the fish don't die off during the night time when there's too much Co2 in the tank.

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post #3 of 7 (permalink) Old 01-29-2012, 06:17 AM
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I wouldnt worry about it. I don't run an air pump with my tanks, havent had any problems with fish gasping.


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post #4 of 7 (permalink) Old 01-30-2012, 03:10 PM
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I wouldnt worry about it. I don't run an air pump with my tanks, havent had any problems with fish gasping.
+1 I have two tanks on co2. One injected one with diy. Neither have had a problem with fish gasping.

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post #5 of 7 (permalink) Old 01-30-2012, 04:23 PM
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It really depends on your setup and how heavily planted the tank is. If you have a lot of plants pearling and oxygenating the water it will probably be fine overnight. Then again, if you have an air pump and timer handy why risk it. If your co2 stops, slows down, or something goes wrong during the day it may save some fish that night.
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post #6 of 7 (permalink) Old 02-11-2012, 12:02 PM Thread Starter
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post #7 of 7 (permalink) Old 02-14-2012, 07:35 AM
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I had diy hooked up to a powerhead in a 55 that I left on all the time and I believe it to be the reason I lost some fish. Not neccessarily gassing the fish but probably because of the ph flucuations every night. Any good fish keeper will know the key to happy fish is consistency so if you have a timer and an air pump set it on up. Better safe than sorry. Maybe set it to turn back on a little while before the lights to get some co2 built up for the plants to use right away.
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