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I'm wondering how quickly a tank can rise in pH if your yeast reactor runs out - be it DIY or a Hagen unit or even compressed co2?

What if my tank normally runs around 7.5 and a co2 unit takes it down to 7.0, then I miss the fact that the unit has run out of co2?

What happens and how fast? Can it kill the fish? It can take a day or so to get the stuff running again, so I'm even wondering about the day that I decide to replace the contents and get them bubbling again.

Is there anything that says I can't mix my stuff in another container, then dump it all into the reactor?

I have the hagen unit and I know the sugar goes on the bottom. Mixing it a day ahead of time, then dumping it into the container would have the sugar mostly on top. Does it matter?

I suppose it is a good idea to kill the lights if you run out so the co2 doesn't rise too fast???



Last edited by Cory_Di at 06-Feb-2005 23:20

HI,
The answer is that it depends upon what your KH is.
The higher the KH the slower the swing of pH.

Since you just started it, why not shut it off for a
couple of hours and watch the pH. That would answer
your own question from your own personal experiance.
I doubt that there is a specific answer, ie 2 hrs=
a shift of 2.0 as there are so many variables.

Frank

-->>> The Confidence of Amateurs, is the Envy of Professionals <<<--

in my 10g tank my ph stays stable because i use a small bottle to trap the co2 as it comes out. i've gone over 2 weeks after the co2 ran out and my ph stays at the same level as if it were running 24/7

edit: what i mean is, it also depends on the method of injection as to how fast or slow your ph rises once you run out of co2

Last edited by moondog at 07-Feb-2005 02:07

---

"That's the trouble with political jokes in this country... they get elected!" -- Dave Lippman

Di,

Although rapid swings in pH are to be avoided, my greatest concern is a rapid drop in pH. A decrease in pH is much more lethal than an increase in pH to fish. Ph is a logarithmic scale so a pH of 7.0 is 5 times more acid than a pH of 7.5.


__________
"To steal ideas from one person is plagiarism; to steal from many is research."
researched from Steven Wright