How do you fine tune your CO2? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 11-21-2014, 07:34 PM Thread Starter
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How do you fine tune your CO2?

I feel like I am always fiddling with my CO2 system. Gradually increasing or decreasing bubble rate depending on fish behavior or plant growth. Or I'm changing the timer settings.

For those of you CO2 adepts out there, which do you adjust first? bubble rate or timing?

FYI I am using a pretty vanilla Aquatek reg on a paintball cylinder. Its the only regulator I have ever owned, but it doesn't seem to "fine tune" very well.
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post #2 of 5 (permalink) Old 11-21-2014, 07:39 PM
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There really isn't a need to adjust timing. Just set it to turn on 60 minutes before your lights come on and turn off around 30-60 minutes before lights go out. These are just ball park figures but anything in that area is fine. Just pick something and stop adjusting it.

As for bubble rate, just slowly increase the amount. I.e. raise it a bit every day or two. When you have a negative response from your fish (gasping/going to the surface), turn it back to where it was previously, maybe a tad bit more if you want to be safe. Once that is done, there shouldn't be any fiddling. I have adjusted mine in probable 6 months. And the only reason it got adjusted was because I wanted to use the rest of the gas in the tank so I turned it up each day as the tank was running out. But that's irrelevant to the discussion at hand.


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post #3 of 5 (permalink) Old 11-21-2014, 07:51 PM Thread Starter
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I think my reasoning for adjusting the timing was that the needle valve wasn't letting me make subtle adjustments. Seems to have two three settings: off, slow and fast.

I started with a bubble count that was too low. Turning the valve made the CO2 crank out and the fish were unhappy. So I figured that a lower bubble count that started earlier could accomplish the same thing. But it always ends up a confusing mess because of too many variables to adjust.
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post #4 of 5 (permalink) Old 11-21-2014, 07:56 PM
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Quote:
Originally Posted by Dave Allen View Post
I think my reasoning for adjusting the timing was that the needle valve wasn't letting me make subtle adjustments. Seems to have two three settings: off, slow and fast.

I started with a bubble count that was too low. Turning the valve made the CO2 crank out and the fish were unhappy. So I figured that a lower bubble count that started earlier could accomplish the same thing. But it always ends up a confusing mess because of too many variables to adjust.
Which NV do you have? Even the worst ones provide some kind of adjustment.


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post #5 of 5 (permalink) Old 11-21-2014, 08:00 PM Thread Starter
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Which NV do you have? Even the worst ones provide some kind of adjustment.
Sorry Higher. I was exaggerating. I can adjust it, but never quite feel like I have the right bubble rate.
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