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Re: [APD] nitrogen requirements
With moderate lighting and no added CO2, fish food/poop can
be adequate. But if you've got added CO2 and more than
about 2 watts per gallon, your plants probalby get hungry.
If you added some KNO3, you might find the ppm will go up
right after and dive way down very soon after.
--- Greg Idemoto <gidemoto at hotmail_com> wrote:
> I understand the NItrogen/ NItrate is one of the
> macronutrients and
> essential for plants. I also notice that many of you
> supplement it.
> My question is this:
> If you have a heavy fishload, could you get by with just
> the nitrogen the
> fish leave behind? I have a 40 gallon long with 17
> cardinals, 7 dwarf
> loaches, 4 SAEs, 2 apistos and a few odd tetras. I don't
> really dose N by
> itself, although I add iron and potassium every few days,
> as well as Tropica
> Mastergrow after a water change.
> My tank specs are pressurized CO2 about 25ppm, 260W
> Compact Flourescent.
> Full 130W for 10 hours, the other 130W goes on for 4
> hours of the 10.
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