RE: [APD] CO2 use - off at night? -- or - plugging timers

[Sean Kettle <kettles at videotron_ca>]

Well, since the CO2 isn't being used at night, it's reasonable to assume the
system shouldn't have to inject a great deal (if any) to maintain the pH.
My guess would be that at lights off, there would be minimal injection of
CO2 in the first place.

-----Original Message-----
From: aquatic-plants-bounces+kettles=videotron_ca at actwin.com
[mailto:aquatic-plants-bounces+kettles=videotron_ca at actwin.com] On Behalf Of
S. Hieber
Sent: Thursday, June 10, 2004 1:31 PM
To: aquatic plants digest
Subject: Re: [APD] CO2 use - off at night? -- or - plugging timers


Hmmmm. With a controller you maintain a CO2 level all night that you don't
really need since the plants aren't using it. You could let the pH drop a
bit at night. If your'e going to al the expense of a pH contorller and
solenoid, why not hook up to the light timer also and save that last little
bit of CO2?

Scott H.
revance at indiana_edu wrote:
> I just use a pH controller and solenoid valve... that way
> it only runs when it
> needs it. Milwaukee makes a good inexpensive controller
> (about $100) and I 
> can't imagine injecting co2 any other way! The real nice
> thing about this, 
> other than saving on co2 is that all you have to do is
> keep track of your 
> carbonate hardness and you know roughly what your co2
> levels are at any given 
> time... no bubble counting etc.
> 
> 
> Quoting Mark Vanvick <mark_vanvick at choldings.com>:
> 
> > I read in an issue of Aquatic Plants Digest that it is
> a good idea to turn
> > off the CO2 at night.But I get the feeling that most of
> the people on this
> > board don't do that.I have a wet/dry filter and use a
> lot of CO2 and turning
> > it off at night would help.What do most of you folks
> do? Thanks.
> > -Mark Vanvick _______________________________________________
> > Aquatic-Plants mailing list
> > Aquatic-Plants at actwin_com
> >
> http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants
> > 
> > 
> > 
> 
> 
> _______________________________________________
> Aquatic-Plants mailing list
> Aquatic-Plants at actwin_com 
> http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants


=====
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