Re: additional aeration at night needed with C02 injection?

I have a PinPoint pH controller which turns on an airpump to increase
surface turbulence when the pH gets too low.  I'm doing DIY CO2 with two
64oz juice bottles and a Hagen "Natural CO2 System" diffuser on a 29 gallon,
heavily planted tank.  I've found that my pH drops by more than 0.2 at
night.  The controller keeps the pH within a 0.2 range.  If I were using CO2
from a tank, I'd probably just try to get the amount of CO2 injected to the
right level, but with the DIY CO2, it seems easier to inject a bit more CO2
than needed and let the controller level things out.

> "Dave M. Picklyk" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > I just thought I'd toss this around the newsgroup and see what kind of
> > opinions I get: What does everyone think about adding more aeration at
> night
> > when the lights are off and plants have reversed their gas roles. I have
> > seen a few of my fish dwelling towards the water surface at night. I was
> > thinking about the possibility of adding a timed airstone for dark
> periods.
> > I am concerned about fluctuating PH, but more about oxygenation for my
> > larger bodied fish.
> >
> > Thanx for any help you can give! :)
> >
> > Dave.
> >
> > www.picklyk.com/aquascape
> >
> >
>
>