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Re: Take the Carbon Challenge
- To: Aquatic-Plants at actwin_com
- Subject: Re: Take the Carbon Challenge
- From: "Louis Lin" <lhclin at aw_sgi.com>
- Date: Fri, 27 Mar 1998 16:37:27 -0500
- In-Reply-To: Aquatic-Plants-Owner at actwin_com (Aquatic Plants Digest) "Aquatic Plants Digest V3 #165" (Mar 27, 3:48pm)
- References: <199803272048.PAA22429 at acme_actwin.com>
David Aiken wrote:
> I also haven't seen anything written specifically on this. I do not that
> reef aquarists have expressed similar concerns in relation to carbon and
> reef tanks. Julian Sprung's recommendation is to throw a bag of carbon
> loose in the sump, or even at the back of the tank itself, where water is
> not going to be forced through it as it would if it were placed in a
> filter. His experience is that, used this way, it will remove the humic
> compounds which cause yellowing of water without impacting on nutrients.
I don't think trace removal is main concern for using GAC sparingly and
not forcing water through it. The main reason is by doing so, the GAC
effectively becomes a media for mineralization and nitrifying filtration,
a bad thing in reef aquariums.
For plant tanks, placing the carbon in the filter is probably not
a problem. But if the main reason for using GAC is to reduce colouring
and odor, and if placing the GAC outside the filter works, then placing
it outside makes maintaince easier.