Activated Carbon Question

Seeing other people's experiences with carbon dosing (both proprietary and DIY), my personal experiences with carbon dosing, and watching/helping people do it on a daily basis at my work. My personal experience...I feed as much as I want (I put four large pinches of flake and two large cubes of food in my tank last night), do *very* scant water changes, and have no nutrient problems to be concerned about.

Beyond that, I'll quote myself from earlier in this thread...

<a href=showthread.php?s=&postid=13417553#post13417553 target=_blank>Originally posted</a> by miwoodar
I don't know who discovered it in the aquarium trade. I remember the first time I read a discussion on carbon dosing though. The subject was sugar. My first impression was that people were dumber than rocks for believing in such a thing. The chemistry side of it, well I can't tell you how that works. I imagine that the claims of nitrogen and phosphorus compounds being utilized as building blocks (DNA for one) by the bacteria is a good start though. Are the bacteria actively breaking down the NO3 and PO4 too? I imagine so. What is beyond there is beyond my little brain. :(

I work closely with many of the first persons to apply carbon dosing in the context of cleaning up hazardous waste in ground water. People in the industry used to laugh at the idea and ended up years behind the times. My company cleans up spills that would have traditionally taken 30 years in only 5 or 10 by pumping a few hundred thousand dollars of molasses into the ground....saving millions. We've used about a dozen different carbon sources. Molasses is most commonly used simply because it is usually the cheapest to use on a large scale. (I would not put molasses into my tank! Too many impurities and it's high in sulfur compounds!) We understand some of the processes as to how it works but unknowns definitely exist. We're growing bacteria just like reefers do...some of the bacteria happen to have the ability to break down chlorinated solvents.


***edit***
To revise the quote a touch. I know the NO3 is actively being broken down to N2. Regarding the PO4, the process wouldn't be so simple.

In regards to Borneman's articles, this is the only subject I am aware of that my opinion is vastly different than his. He is no doubt an excellent source of information and guidance.

I'm sure you already checked this out, but here's the vodka article written for RK last month.
http://www.reefkeeping.com/issues/2008-08/nftt/index.php
 
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mike that is a superb link mate, exactly what i was looking for, i have been browsing the web looking for tips on vodka, not nessassarily so i can start dosing as i probably wouldnt, however i like to know about these things, maybe 1 day i will dose it, i have saved it to my reading folder, thanks again for posting it here
 
miwoodar,
Would you please elaborate on your experiences with carbon dosing in your tank and your disagreement with Borneman?
I don't follow this method but I may in the future so I'm just curious.
Your first post seems to back up the theory then you come out and seem to say it doesn't work...I'm confused.
 
It works - it was not my intent to imply it did not. I'm not saying to do it though...it does not come without risk. There are many ways to skin a cat. Choose the methods you wish. If you want to know more about carbon dosing, reading the article I linked on the last page is a good place to start your research.
 
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