Co2 fertilization??? - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 10-27-2012, 11:53 PM Thread Starter
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Co2 fertilization???

Can anyone her explain to me what Co2 fertilization is(i.e. importance, how to)?
Thanks
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post #2 of 7 (permalink) Old 10-28-2012, 04:50 AM
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Plant tissue is made up primarily of carbon, with nitrogen the second highest element. Nearly all plants naturally get carbon from CO2 in the atmosphere. Aquatic plants either grow to the water surface to get access to that carbon, or they grow primarily in water that naturally has lots of dissolved CO2 in it. So, if you want your aquatic plants to grow well, and as fast as the light that drives their grow rate lets them, you need to supply carbon in a usable form to the plants. That will be as carbon dioxide for anything except low light, where you can also use Seachem's Flourish Excel as a carbon source.

To dose CO2 you can make a DIY system using yeast/sugar/water to generate the CO2, or you can buy a pressurized CO2 system. See the DIY forum for information on those.

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post #3 of 7 (permalink) Old 10-28-2012, 07:58 AM Thread Starter
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well the only plants i plan on using r java fern, anubias, and ancharis. Also plants that hav root systems will using dry fetilizers, or liquid fertilizers be ok?
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post #4 of 7 (permalink) Old 10-28-2012, 09:33 PM
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All plants (all life that we know of) is carbon based, so regardless of what plants you choose, carbon will be required for them to grow.

As Hoppy mentioned, in lower light conditions, carbon demand is not as high (but is still required), so you have the option of using Flourish Excel instead of CO2.

As for your choice of fertilizers, either is fine, though using dry fertilizers and mixing them with water yourself will be much cheaper.

For liquid fertilizers, you are essentially paying for the water (which increases shipping weight, which you end up paying for)

Anthony


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post #5 of 7 (permalink) Old 10-29-2012, 03:07 AM Thread Starter
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so other than +from online where could i possibly get dry ferts from?
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post #6 of 7 (permalink) Old 10-29-2012, 04:36 AM
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The best place is your local planted tank club. You could try http://www.honoluluaquariumsociety.org/ to see if any of their members sell the fetilizer chemicals.

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post #7 of 7 (permalink) Old 10-29-2012, 04:57 AM
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If you have any hydroponics stores nearby, I would check them out too.

Anthony


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