active carbon - The Planted Tank Forum
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post #1 of 2 (permalink) Old 02-12-2013, 08:49 PM Thread Starter
Algae Grower
Join Date: Dec 2012
Location: lincoln, uk
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active carbon

firstly what does active carbon do and secondly can i run a walstad tank with a active carbon in filter thanks
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post #2 of 2 (permalink) Old 02-12-2013, 11:14 PM
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Activated carbon removes chemicals from the water. It has also been shown/linked to cause a disease in fish.

It can be used during a tanks start-up to remove tanin's and other impurities but it's probably not a good idea once you have live stock or long term..

(It's also used in RO/DI systems at times)
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