Keeping carbon in a tank?

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hi guys,
i have now got mixed feelings about running my system with carbon in it after discussing with a couple of guys at a LFS.
none of them run carbon in their systems.
the only time they ever run it is when there paramaters slip a little out. otherwise absolutely none is in the system. their claim is that the LR and DSB will do the same job.

on the contra tho, i have heard of guy who always run carbon in their systems and replace it every 3 months. this is what i was told, and what i do.

what are your thoughts on this???
 

Rory

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Replacing carbon every 3 months is about the same as not running carbon. It's usually exhausted in 2-3 weeks.
 

Alan

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I run carbon 24/7 and replace every 2 weeks. Carbon is considered a chemical filter, live rock and sand are biological filters, they dont do the same thing at all. The carbon will remove toxins from the water that are released by the corals and generally lower the DOC [dissolved organic compounds] of the system. My advice would be to run carbon and replace frequently.
 
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I run carbon 24/7 and replace every 2 weeks. Carbon is considered a chemical filter, live rock and sand are biological filters, they dont do the same thing at all. The carbon will remove toxins from the water that are released by the corals and generally lower the DOC [dissolved organic compounds] of the system. My advice would be to run carbon and replace frequently.
Same here
 

Ocean

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I see much better results when going with AC would not risk going with out it. It also gives the water that polished look!
 
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i also run ac for 2 weeks, but my last bach is in for two months....:whistling:
waiting for the carbon to come.

ac makes water crystal clear when system is fine
 

Alan

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Very much so, probably more efficient than carbon.
 
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Hi Furbz never used it before but after stray volts in my tank, was forced to use it and it works very well like you say that polished look hey.
 
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great! carbon it is! think i need to change mine tho.. had it in for 2 months now!! oops.
got a bad cyano break out. do you think it is due to my carbon leaching pho's??
 

Mike

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great! carbon it is! think i need to change mine tho.. had it in for 2 months now!! oops.
got a bad cyano break out. do you think it is due to my carbon leaching pho's??
Do you run a phos remover? if yes, then change it, if not get some. Also check your top up water/replecement water to ensure you are not adding phos to your tank.
 
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I run carbon 24/7 and replace every 2 weeks. Carbon is considered a chemical filter, live rock and sand are biological filters, they dont do the same thing at all. The carbon will remove toxins from the water that are released by the corals and generally lower the DOC [dissolved organic compounds] of the system. My advice would be to run carbon and replace frequently.
Agreed :thumbup:

One thing to consider, though, is the quality of the carbon. The cheap & nasty carbon sold by most pet shops could leach phosphates into the water, and could cause lots of problems. it's easy to check, though, if you have an accurate phosphate test kit - just keep some carbon in a container of RO water for a week or so, and then test the water for phosphates - if there is an increase don't use that brand of carbon.

Here are some interesting links:

Activated Carbon

http://www.carbochem.com/activatedcarbon101.html

Aquarium Frontiers On-Line: July 1997: Product Review

Reef Central Online Community - Experiment: Is all Granular Activated Carbon (GAC) created equally?


Hennie
 

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