Chuck,

Is your CO2 flowing at the same rate all the time? I seem to recall
sometime ago, you mentioned that you leave your CO2 going even at night. If
this is the case, how much PH fluctuation do you normally see during any
given 24 hour period?

I saw an article on your site regarding constructing a wet/dry filter. I
assume you use a wet/dry filter, right? Does this sort of filtration allow
you to more easily stabilize input and outgo of CO2 in the water? I wonder
if this makes CO2 injection without a controller easier.. what is your
feeling on this? If you were to use a different filter, like a canister
filter that is enclosed and therefore not amenable to CO2 dissipation, do
you think it would be more difficult to regulate CO2 (without a controller)?
Just curious.

I personally would have a much harder time maintaining conditions in my tank
without a controller, since I am not near my tank much during the week. A
controller has worked well for me for the past couple of years.

-Bruce Geist


"Chuck Gadd" wrote in message
...
On Sun, 05 Jan 2003 12:49:08 -0600, Joe Ferenchik
wrote:

exchange. This is what kills the fish. There is no oxygen available at
the waters surface since it's all co2. I don't know for certain if
this phenomena will happen with a tank that doesn't have a cover on

I've seen a CO2 overdose (not caused by end-of-tank dump, but rather
due to a faulty pH probe/controller), which killed a bunch of fish in
an open-top tank. The deaths were caused not by lack of O2, but
rather by the massive amount of CO2.

ride to the welding shop. The only way to get liquid from the
pressurized tank to your aquarium is if the pressurized tank has
liquid in it and it falls over.

Even then you probably wouldn't get liquid CO2 out. It would be
stopped by the regulator, but it might damage the regulator.


Chuck Gadd
http://www.csd.net/~cgadd/aqua