The carbon in my filter may be bad for my live plants? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 02-06-2012, 01:09 AM Thread Starter
Question The carbon in my filter may be bad for my live plants?

I was doing some reading on some other site and it said that the carbon part of my hanging filter may remove elements beneficial to my live plants? Anybody know if there is any truth to this?
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post #2 of 4 Old 02-06-2012, 10:41 AM
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I cant tell you exactly what they are, you will have to wait for someone more versed in planted tank chemistry than I, but the carbon will remove certain macro, and micro nutrients that the plants need to thrive. This is especially bad if youre paying good money for a fertilizer, just to have some of it removed by the carbon.

My advice (and most everyone elses here) is to not replace the carbon from this point. After a couple weeks it wont be doing anything, as it will be used up. Then instead of replacing it, keep it on hand just in case. You never know when it will be necessary to remove medications from your water.

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post #3 of 4 Old 02-06-2012, 11:31 AM
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I just stopped using the filter with Carbon and just use Floss. It has worked fine and my water parameters are always fine when I check them so it must be doing the job as well without taking out all the "good stuff"

“The greatness of a nation and its moral progress can be judged by the way its animals are treated” Mahatma Gandhi
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post #4 of 4 Old 02-07-2012, 11:49 AM
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Agree. Carbon removes various substances, some of which are good for plants, and some of which are better removed by the plants themselves, which is why we use live plants. Nature's "carbon" if you like.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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