Low Tech CO2 Concerns - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 03-07-2013, 03:45 PM Thread Starter
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Low Tech CO2 Concerns

Hi there,

I've got a 40 gallon planted tank full of plants, working on my fish stock...currently about 75% there. I've gotten a lot of the plants from a friend with a 40 gallon who had great success with all of them. He kept it low tech and didn't use any CO2, and I'd like to do the same.

Out of curiosity, I was reading up on CO2 and there were suggestions about increasing CO2 in a tank naturally. It never occurred to me that this could be a possibility, but would putting the filter on a timer - which would reduce the agitation of the water surface, increase the CO2 in the water? If so, would I run into any other problems?

Thanks for any advice you have.
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post #2 of 5 (permalink) Old 03-07-2013, 04:37 PM
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Quote:
Originally Posted by r3h0ld3r View Post
Hi there,

I've got a 40 gallon planted tank full of plants, working on my fish stock...currently about 75% there. I've gotten a lot of the plants from a friend with a 40 gallon who had great success with all of them. He kept it low tech and didn't use any CO2, and I'd like to do the same.

Out of curiosity, I was reading up on CO2 and there were suggestions about increasing CO2 in a tank naturally. It never occurred to me that this could be a possibility, but would putting the filter on a timer - which would reduce the agitation of the water surface, increase the CO2 in the water? If so, would I run into any other problems?

Thanks for any advice you have.
could be a reduction of surface tension would boost Co2, but could also reduce the oxygen in the tank for your fish. might be a concern.. might not?
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post #3 of 5 (permalink) Old 03-07-2013, 05:02 PM
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Is said that a little ripple on surface will help to equalize CO2 with that in atmosphere to small degree.
Add to this the CO2 produced by fishes as by-product of respiration,and organic carbon produced by bacteria in substrate,and you have little to worry bout in my view.
I have three low tech tank's all with fairly good rippling at the surface, and plant's are growing fine albeit slowly, which suit's me.
My filter's run 24/7 until I shut em off to clean em.
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post #4 of 5 (permalink) Old 03-07-2013, 08:37 PM Thread Starter
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Ok sounds good. I'll just keep doing what I'm doing then. I had never thought of turning the filter off so I just wanted to check if this was common practice. Thanks.
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post #5 of 5 (permalink) Old 03-07-2013, 11:04 PM
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Flourish Excel might be something you can use to add CO2 to the water as well, although it might not be as cost-effective on such a large tank.
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