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Re: [APD] uptake of nutrients, day vs night
what is your co2 at whats the ppm? I know that the photo period is opposite
what it is during the day so the plants take up oxygen and release CO2 at
night and day time the take up CO2 and release O2..
Have you thought about turning of the co2 at night. I know you said its a
yeast based system so is it DIY or one of the commericial products if so
which one.
----- Original Message -----
From: "Diana Berberich" <fishfaceid at yahoo_com>
To: "APD Post to List" <aquatic-plants at actwin_com>
Sent: Friday, November 21, 2008 10:19 AM
Subject: [APD] uptake of nutrients, day vs night
Hello Folks:
I have been seening some of my plants pearling. A good sign.
What I want to know is what types of nutrients do the plants take up in
darkness (night cycle) as opposed to the light (day cycle).
I noticed that sometimes if I add a dose of nutrients at night the tanks
will look crystal clear in the morning. The plants look nicer as well. Some
plants will also become lighter or paler in color, taking on a bluish tinge
in the leaves, and continue healthy growth despite this. So I presumed that
something goes on at night that does not occur in daylight. I do know that
the plants will begin uptake of oxygen at night, thus competing with my fish
for air. So I use a keralia nano to circulate the water at the surface to
gently get more oxygen into the water at night and this works (the nano is
on a timer). If not I find fish gasping at the top in the morining, due to
all the plant growth. During the lighted period the plants take up CO2 and
so my fish are fine, due the plants giving off oxygen into the water.
So now I would like to understand what nutrients I need to dose into the
water column so I can dose the right chemical at the right time for optimal
uptake. The idea is not to be feeding algea at the expense of plants. And
that includes the slime.
Thanks, Diana
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