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View Poll Results: Carbon Filter
Helps plant growth 0 0%
Hurts plant growth 1 16.67%
Unsure 5 83.33%
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Old 04-25-2007, 07:35 AM   #1
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Eheim Classic Question - Is the Carbon Filter Beneficial?

Do I need the carbon filter pad in a planted aquarium?

Is it beneficial or detrimental to plant growth?
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Old 04-25-2007, 07:45 AM   #2
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You don't 'need' it, but if you have yellowing water from tannin's, it will help clean it up.

The use of a Carbon filter is debatable in a planted tank. Some say it will remove nutrients from the water. It will remove organics and some have noticed better plant growth while using it. I don't know of any conclusive evidence of better growth.
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Old 04-25-2007, 09:58 AM   #3
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I believe that the emerging concensus is that activated carbon does not do any harm, but in most cases is an unnecessary expense. There has been some rumor that it might absorb some of the nutrients plants need, but never any conclusive proof. Many people use activated carbon in planted tanks with no problems. The only time that you truly need it is for the removal of tanins or medications at the end of a treatment. Water changes will take care of the DOCs.
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Old 04-25-2007, 10:07 AM   #4
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Quote:
Originally Posted by Purrbox
I believe that the emerging concensus is that activated carbon does not do any harm, but in most cases is an unnecessary expense. There has been some rumor that it might absorb some of the nutrients plants need, but never any conclusive proof. Many people use activated carbon in planted tanks with no problems. The only time that you truly need it is for the removal of tanins or medications at the end of a treatment. Water changes will take care of the DOCs.
It's not activated carbon...just the black carbon filter that came with the canister unit.
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Old 04-25-2007, 11:59 AM   #5
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Based on the description that the manufacturer provides it is activated carbon, even though it isn't specifically called that.
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Old 04-25-2007, 12:02 PM   #6
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I find those carbon pads to be pretty useless. If you want to use carbon you are better off to buy quality bulk stuff and put it in a media bag.
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Old 04-25-2007, 12:56 PM   #7
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Quote:
Originally Posted by Purrbox
Based on the description that the manufacturer provides it is activated carbon, even though it isn't specifically called that.
I stand corrected...
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Old 04-25-2007, 04:28 PM   #8
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I do not use carbon, but I have heard many experts suggest using it for the first 1-2 months with a new aquarium setup. Once the tank is established, there is really no reason to use it, aside from the reasons that Rkilling and Purrbox mentioned.

From what I understand, carbon is really only effective for about a week, after which point you would need to recharge/replace it.
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Old 04-25-2007, 08:14 PM   #9
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I stopped using it about 2 months ago. The only thing i have noticed is that when I pour freshwater in during water changes i tend to get a whiff of that fishy smell. If you've ever smelled it you know what I mean.
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