Help: CO2 Dumped, Best Way To Re-Oxygenate the water? - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 07-21-2013, 09:57 PM Thread Starter
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Exclamation Help: CO2 Dumped, Best Way To Re-Oxygenate the water?

I just finished a 40% water change, my DC is still looking yellow ish.
The good news is the fish seem to be breathing more calmly now.

Should I do another WC?

I left about 10% of the water out so the filters are agitating the surface quite well.

Any help is greatly appreciated.

Thanks,
Ron
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post #2 of 7 (permalink) Old 07-21-2013, 10:01 PM
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Add an air stone.
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post #3 of 7 (permalink) Old 07-21-2013, 10:36 PM Thread Starter
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Quote:
Originally Posted by longgonedaddy View Post
Add an air stone.
Surface agitation will do much more than an air stone.

An air stone does not actually add O2 to the tank, it just creates surface agitation.

Thank you though!
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post #4 of 7 (permalink) Old 07-21-2013, 11:08 PM
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Quote:
Originally Posted by ronaldvalente View Post
Surface agitation will do much more than an air stone.

An air stone does not actually add O2 to the tank, it just creates surface agitation.

Thank you though!

Yeah, but they make a lot of surface agitation.
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post #5 of 7 (permalink) Old 07-21-2013, 11:15 PM
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Quote:
Originally Posted by ronaldvalente View Post
Surface agitation will do much more than an air stone.

An air stone does not actually add O2 to the tank, it just creates surface agitation.

Thank you though!
That's what an air stone does. It creates surface agitation. More agitation = better exchange of gasses = more o2.

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post #6 of 7 (permalink) Old 07-21-2013, 11:19 PM
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I'd wait a few hours and observe, then do another water change. Adding an air stone couldn't hurt. Other than that you've done pretty much all you can do. Good luck!

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post #7 of 7 (permalink) Old 07-21-2013, 11:27 PM
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Set a fountain pump or power head as low in the tank as you can.
Aim it as vertically as you can. Optimum location is wherever there is the least water movement from the filter. In a case where there is no equipment already creating some water movement then the bottom middle.

This will create a rising column of water.
It does 2 things:
Takes the 'worst' water, from lower in the tank and sheets it across the surface for maximum air contact.
It adds more ripples to the surface, increasing the surface area.

You can get the same effect from an air stone, but I think the pumps move a lot more water.
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