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Old 08-25-2003, 02:29 PM   #1
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How do you use Carbon

I was wanering how people with overflows use GAC in their systems. I have a 55gal, with a trickle wet\dry and i was wondering where would be the best place to put it, how long to leave it in, should i rince it, etc, etc, etc?
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Old 08-25-2003, 02:33 PM   #2
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deffinitly rinse the GAC. there is a lot of fine powdered AC that you don't want suspended in the water as I don't think it would be good for your fish.

All I do is pour some of the GAC into a media bag (a kid at the LFS says he uses panty hose... I keep hearing about people using panty hose for varius things...) so anyway... put the GAC in the pantyhose, Rinse it until you stop seeing black powder coming out of the pantyhose, then just drop it somewhere that it will get some water flow, but not direct water flow IMO.

how long you leave it in there depends on your system and why you're adding it.
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Old 08-25-2003, 02:35 PM   #3
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deffinitly rinse the GAC.

I meant do i take it out and rince it again during the week?
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Old 08-25-2003, 02:37 PM   #4
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I meant do i take it out and rince it again during the week?
No. It will absorb materials until it has been saturated (chemicaly). Once it's saturated you remove it and throw it away.
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Old 08-25-2003, 04:05 PM   #5
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yup, no rinse and reuse with carbon, once it's spent, gotta throw it out

a good high quality activated carbon can absorb nearly 2x it's weight in 'forgein matter'... I'm not sure if aquarium grade can do this well, but it should get noticablly heavier and swolen looking as it goes along.

I use black-diamond in my filter bags, and it swells quite a bit by the time I take it out (usually 2-3 weeks later).

HTH
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Old 08-25-2003, 08:34 PM   #6
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I rinse it, and I recommend you do as well. Whatever your holding the carbon in, will trap detritus, this will then decay and rot. I change my carbon once per week and rinse the bag out 1/ way through the week

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use black-diamond in my filter bag
I do too, only it is marked Aqua Tech brand at WalMart, for about 1/2 the cost of the Black Diamond. Aqua Tech is Black Diamond produced by marineland, it is just packaged by them for Walmart. Next time your there, check it out, it says right on the package, made by MarineLand
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Old 08-26-2003, 01:41 AM   #7
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Just a dumb question, what happens if you don't rinse well? Never done it, but never thought to ask what would happen either.
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Old 08-26-2003, 01:52 AM   #8
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you get cloudy water that takes time to clear!

plus, it is your carbon clearing itself out of the water, so it' wasted potential.

rinse first always even when they claim "PRE-rinsed ready to use" ... that just means it was given a little spray at the factory, but by the time it makes it to your home, it's all dirty again.
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Old 08-26-2003, 01:58 AM   #9
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Hmm, good to know...thx
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Old 08-26-2003, 09:51 AM   #10
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LOL, the first time I used sand in a tank (rather than CC) many years ago, I didn't rinse the carbon as well as I thought I had, before adding it to the filter. The end product was a nasty looking black coating on my white silica sand. I learned my lesson quick
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