Re: [APD] Re: WPG Rule

["S. Hieber" <shieber at yahoo_com>]

Try to get 15 ppm, even if you have low light.  Plants do
better with CO2, even at low light.  If you are trying to
decide on better lights and can only afford to add CO2 or
the lights. do the CO2 first, then the lights when you.

Scott H.
--- R S Ahl <rsahl at dimensional_com> wrote:
> Now we have a idea of watts per gallon. What would be the
> proper CO2 levels to shoot for?
> 
> >below 1.5 wpg = low;
> >1.5 to 2.5 wpg = as much as you will ever need;
> >2.5 to 3.5 wpg = inappropriately high;
> >above 3.5 wpg = extreme, unless you are growing banned
> botanicals around
> >the base of your tank
> 
> >Of course, this is for fluorescent bulbs that don't
> suck. If you insist on
> >using sucky fluorescnt bulbs, I would go with Scott's
> thumb.
> 
> 


=====
S. Hieber

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