Re: NANFA-- lighting
Sat, 20 Jan 2001 14:11:54 -0600

On 19 Jan 2001, at 0:09, Nicholas J. Zarlinga wrote:

> The problem
> with carbon is that is takes CO2 out of the water which is essential for

Why? How does that work??

> the only thing important? One thing to remember is that if you use high
> intensity full spectrum bulbs, you are adding all of the spectrum which
> introduces wavelenghths which are utilized more by blue green algae and
> therefore compete with the plants, especially if there are other nutrients
> to pollute the water. Using full spectrum bulbs only makes things look
> nicer to us, not the plants. Red wavelenghts are used more by plants than
> blue. That is why good plant bulbs are a pinkish in color.

The experience of aquatic gardeners seems to be diametrically
opposite. The plant bulbs when used over aquaria promote algae
growth much more that a full-spectrum bulb.

In a healthy planted tank algae is not a problem because the
vascular plants outcompete the algae.


Jackson, MS
Whenever I see an old lady slip and fall on a wet sidewalk,
my first instinct is to laugh. But then I think, what if
I was an ant, and she fell on me. Then it wouldn't seem
quite so funny.

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