RE: Dumb Luck

[Paul Evans <pm_evans@yahoo.com>]

Adam,

My pH stays more stable with the DIY CO2.  Without it
the pH will go up to 8.5-9 during the photo period as
all the CO2 is consumed by the plants.  This is a much
more extreme swing than the pH drop when the lights go
off.  I have the CO2 bubble into a diffusion bell that
can actually hold quite a bit of air so the new bottle
can come online before the CO2 in the bell is gone. 
Only when I neglect to change the bottle does the pH
get that high.

How do you diffuse the CO2? Via the filter?  I am
always looking to improve here.

Paul
--- Adam McElroy <adam@freelancers.freeserve.co.uk>
wrote:
> 
> Same here, right now I'm leaving my DIY CO2
> disconnected so that the pH
> doesn't swing wildly when I swap pop-bottles and the
> plants can just tough
> it out for a few weeks
> Perhaps Santa Claus will bring me a nice pressurised
> CO2 system  :-)
> Adam
> 


=====

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