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post #1 of 8 (permalink) Old 09-19-2005, 12:02 PM Thread Starter
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Carbon

i have been reading some threads of the masters in here and saying they dont have carbon in ther filters why is this?
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post #2 of 8 (permalink) Old 09-19-2005, 12:07 PM
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You'll want confirmation on this, but I believe it is because it will pull nutrients from the water column.

Steve - 33g reef and a 180g planted in need of a re-scape.
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post #3 of 8 (permalink) Old 09-19-2005, 12:31 PM
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Yeah, that's what I've read as well.


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post #4 of 8 (permalink) Old 09-19-2005, 10:05 PM
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I haven't used carbon in my tanks for about 8 years. I stopped when I read a article in Aquarium Fish that was all about not using carbon. Yes it will remove some nutrients. The main point is that it really isn't necessary. You should keep it around to remove medication should you ever have to, or if something gets spilt in the tank. All I do is fill the void where the carbon was with foam. Not using it didn't change anything, i have just as much sucess with keeping fish, but i don't have much experience with the planted aspect of using carbon.


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post #5 of 8 (permalink) Old 09-21-2005, 12:19 PM
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I believe the other problem people have with carbon is over time it begins to release those chemicals that it absorbs. In this sense, "aged" carbon really has no effect on water quality aside from being a site for bacterial colonization. I'm currently doing an experiment on using activated charcoal as a substrate in my 5 gallon planted.
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post #6 of 8 (permalink) Old 09-21-2005, 12:39 PM
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Quote:
Originally Posted by scolley
You'll want confirmation on this, but I believe it is because it will pull nutrients from the water column.
I'm sorry. I left out the obvious...

It's also because the principle purpose of carbon is chemical filtration that is normally done by the plants and/or bacteria in a planted tank... no need for the carbon to remove nitrates or ammonia for instance.

But there are some times when the plants would not perform such filtration adequately (like removing medications from the water) when you might need to use carbon for a while.

Steve - 33g reef and a 180g planted in need of a re-scape.
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post #7 of 8 (permalink) Old 09-21-2005, 07:53 PM
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Carbon doesn't remove nitrates or phosphates, and unless it's got the added 'ammo-lock' granuales in it, it's not gonna absorb ammonia either.

debates abound as to whether carbon can absorb trace nutriets. I'm pretty sure it would absorb Excel though.

Biggest reason not to use it...is that its not at all necessary. Carbon's primary purpose is to remove odors, and remove medications. No one medicates constantly, so that rules out reason #2.
Normal water changes should keep a tank smelling clean, thus removing the need for #1.

Why spend the money and take the time to use it when it's not needed?
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post #8 of 8 (permalink) Old 09-21-2005, 09:45 PM
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Quote:
Originally Posted by malkore
Carbon doesn't remove nitrates or phosphates, and unless it's got the added 'ammo-lock' granuales in it, it's not gonna absorb ammonia either.

debates abound as to whether carbon can absorb trace nutriets. I'm pretty sure it would absorb Excel though.

Biggest reason not to use it...is that its not at all necessary. Carbon's primary purpose is to remove odors, and remove medications. No one medicates constantly, so that rules out reason #2.
Normal water changes should keep a tank smelling clean, thus removing the need for #1.

Why spend the money and take the time to use it when it's not needed?
That's what i was trying to say.


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