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Old 11-14-2006, 11:22 PM   #1
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O2 in water

Just a quick question.

I previously had 5G tank that had a small internal filter which did the job great. It had a little intake tube that led outside the tank which allowed it to blow air bubbles into the tank asweel.

Now i have my 120G and i use 2 canister filters. They keep the water crystal clear and move the water around pretty well but i just want to make sure the water is getting enough O2 seeing as there are no bubbles.

Is the movement of the water enough to add in enough O2? Sometime i move one of the outlets up a bit so that it disturbs the surface water but this is quite noisy.

Just want to make sure the little guys can breathe!
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Old 11-15-2006, 12:01 AM   #2
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The movement of water is just fine. As long as the fish aren't gasping for air, I would not worry. That filtration sounds more than efficient for O2 exchange though. HTH
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Old 11-15-2006, 12:35 AM   #3
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O2/CO2 exchange takes place at the water surface. As long as there's good circulation throughout the tank, you shouldn't have any problems.
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Old 11-15-2006, 12:39 AM   #4
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Sweet, I'll move the outputs to make sure i get a good circulation.
Much better than the bubbles as the surface is a lot clearer.

Thanks guys.
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Old 11-15-2006, 08:06 AM   #5
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Is this planted at all?
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Main (20g) - A throng of guppy and platy, Pressurized CO2, Ferts, All Live Plants (Very old pic, new one forthcoming)
http://i902.photobucket.com/albums/a...g?t=1266543023
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