carbon question - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 15 Old 07-12-2007, 10:18 AM
leifthebunny's Avatar
Carbon can be used to remove chemicals from the water, but for planted tanks, carbon removes the needed fertilizers to keep the plants going. Carbon isn't necessary to maintain a clean tank, just to remove medications, chemicals, and other undesirable things from the water.
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post #12 of 15 Old 07-12-2007, 11:56 PM
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Exactly! Which I why now I not only save money, but can tailor my filtering needs.

I do not have a fully planted tank, it's mixed real/artificial. Looks pretty cool I might add. Really hard to tell when it's mixed up.

And I meant to say I have high phosphates, not night phosphates!


Pardon the pun, but I'm hooked!
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post #13 of 15 Old 09-30-2010, 04:08 AM
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Rebuilding spent carbon

Originally Posted by saint View Post
can carbon be "re-activated"?

and is it bad for planted tanks?
The only way to rebuild the spent activated carbon is heating high-temperature, inside a vacuum furnace.
Under these conditions, the coal becomes white and very bright, while the adsorbed organics are deleted in gaseous form.
However, you can recover only a percentage of the previous activity.
In addition, this percentage is becoming increasingly low at every regeneration.
Therefore, after some regenerations, coal is no longer useable and must be replaced.
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post #14 of 15 Old 09-30-2010, 04:20 AM
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This thread is three years old, I have leftovers in the fridge that old

The most important medication in your fish medicine cabinet is.. Clean water.
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post #15 of 15 Old 10-03-2010, 03:29 AM
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Originally Posted by 1077 View Post
This thread is three years old, I have leftovers in the fridge that old
Better late than never (unless you hate archaeology).
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