[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Take the Carbon Challenge
In Aquatic Plants Digest V3 #164, Jeff & Denise Dietsch
<dietsch at voicenet_com> asked about the impact of acivated carbon
filtration in planted tanks.
I know that Amano recommends carbon filtration in newly set-up tanks, but
I'm not certain where he stands on the topic for older set-up tanks.
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 have tried using carbon and Seachem's Purigen in this way when faced
with badly discoloured water from new wood included in a tank and it
definitely removes the water colouring very effectively. I have no idea
on the impact on metal salts and nutrients but noticed no problems with
I guess it depends on why you want to consider using carbon but, if you
want to give it a try, you can try this technique very easily, and remove
the carbon just as easily. I used to place the bag on the substrate at
the back of the tank behind some thick bunch plants where it couldn't be
seen from the front. It doesn't get any easier to install or remove
something than that.