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Re: Activated Carbon and Planted Tanks

Peter Bradley wrote:
" What are other peoples experiences with carbon as a filter medium"

I had not used carbon since I first began growing plants in my tanks.  After
I read Diana Walstad's book I decided to give it a try.  My thought was
(after reading her comments) that I fed my plants every day, so even if the
carbon removed things the plants needed, they would be added back within a

I can say with certainty after two months that the carbon has not harmed the
plants.  They look as good as ever; and they grow as fast as ever.  And
algae on the glass has gone from being an irritant that had to be cleaned
every week, to a minor problem that I work on every two weeks or so.
However, at the same time I began using carbon I also rduced my lighting
from 12 hours to 11 hours a day; so I am not certain how much of the change
is due to lights, and how much if any is due to carbon.

John Godbey
Springfield, VA