Ariation? - The Planted Tank Forum
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post #1 of 5 (permalink) Old 05-05-2011, 01:10 AM Thread Starter
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Silly question:

Do most planted tanks run normal pump ariation or not? I assumed yes until recently it seems like maybe most tanks don't? I guess the plants provide the necessary O2 for fish?

Just curious. I thought I knew the answer but now I'm doubting myself.

Also, I'm going relatively low light, hopefully no CO2 to start, and light fertilization- will ariation add CO2 to the tank, esp enough for the plants to at least grow slowly? I.E. assuming no CO2, it is better to run the pump than not, right?
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post #2 of 5 (permalink) Old 05-05-2011, 04:53 AM
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I myself haven't run a aeration on my tank for about 6 years, too noisy and I started with DIY co2 (not have a paintball setup) so it would just remove what I was putting in.
If you're going for low tech with no co2 and low light the plants probably won't be able to keep up with your air needs.
If you do plan on doing anything to aerate the water I would suggest a powerhead with a venturi, it's a lot quieter, if you put a tap on the inlet you can control the amount of bubbles being introduced and you can put the inlet somewhere where you can't hear it (behind the tank) just make sure you fit a non return valve if you do.
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post #3 of 5 (permalink) Old 05-05-2011, 07:35 AM
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I'm kind of unusual here. I run a couple of air stones at night, to remove any CO2. It's not really needed though.

I can't think of any technical reason to use it during the day. Modern filtration and circulation systems will give you plenty of circulation to allow gas exchange.

Of course, if you just got to have that plastic bubbling clam or diver in your tank (grin), then you could have it for "aesthetic reasons".
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post #4 of 5 (permalink) Old 05-05-2011, 12:09 PM Thread Starter
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Good to know. Thanks.

*time to find a good power head*
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post #5 of 5 (permalink) Old 05-05-2011, 06:08 PM
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I have had very good success aerating at night only. I would sometimes see my fish gasping in the morning before the plants got going with photosysnthesis - even when I shut the co2 off at night as well.

I also endorse using a powerhead to help ciculate water around the tank (helps prevent BGA) especially when the plants start growing thick. That way, your new powerhead serves double duty.

Somebody set us up the tank!
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