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Old 01-04-2012, 08:46 PM   #1
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new carbon

ok so unlike many many people around here I use carbon in my filter now it says replace every month which I plan on doing for atleast three months then ill take it out and add another sponge or bag of bio rings. but it says to rinse the carbon under cold tap water before using it .....so im confused doesn't the chlorine in the tap kill my good bacteria so wouldn't me rinsing my carbon under the tap and sticking it in my filter just cause my good bacteria to die ...Idk what I should do it'll be time to change carbon in about 2 weeks. How do you guys or girls that use carbon do it

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Old 01-04-2012, 09:19 PM   #2
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I dont use carbon except to remove medications. If you keep it, my suggestion would be to rinse it in old aquarium water just like your filter media (AFTER you do the filter media because of the carbon dust). You are correct that chlorine will kill the majority of the good bb in the bag, although it's unlikely to kill all the bacteria in the filter (but why take the chance?). Thats why I rinse in used aquarium water. If you want to use fresh water, many LFS's sell RO/DI water for about 50 cents a gallon (bring your own bucket).

Carbon breaks down and eventually becomes useless. Opinions vary as to how long that takes but most that I have seen seem to think it to be in the 3 - 6 month range. After that, it acts almost like the bio rings and just gathers bacteria.

IMHO, unless you have medicated your tank and want to remove the residual meds, ditch the carbon. I use a synthetic floss that is used to stuff pillows in the last tray of my Fluval 305 to make sure I remove as much of the detrius as possible (It's cheap, comes in big bags at a sewing craft store and lasts for MONTHS). It also makes my water look sparkling clean.
Why do I love fish? Because every time I stare into the little world I have created for them, every problem I have just floats away....
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