Air Stone - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 04-15-2006, 03:52 PM Thread Starter
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Cool Air Stone

If I am useing a Fluval Canister Filter and am useing CO2 in a 29 gal tank, Should I still be useing an Air Stone and air pump?

10 gallon hospital tank.
29 & 50 gallon - High Tech C02 enriched.
50 gallon Pond - Natural.
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post #2 of 8 (permalink) Old 04-15-2006, 04:28 PM
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I believe an air stone would just lower the efficiency of your CO2 system. The air stone will agitate the surface of the water more, thus allowing more CO2 to escape into the atmosphere.
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post #3 of 8 (permalink) Old 04-15-2006, 04:30 PM Thread Starter
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What about oxygen for the fish?

10 gallon hospital tank.
29 & 50 gallon - High Tech C02 enriched.
50 gallon Pond - Natural.
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post #4 of 8 (permalink) Old 04-15-2006, 05:08 PM
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Run the airstone at night.
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post #5 of 8 (permalink) Old 04-15-2006, 05:16 PM
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if your fish are gasping at the surface of the water in the morning....then run an airstone.....if they are not...then dont bother

30 gallon pita...102watts..pressurized co2 ...jbj regulator...eco-complete substrate...xp-2... inline c-02 reactor...turbo twist uv
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post #6 of 8 (permalink) Old 04-15-2006, 07:08 PM
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There is a benefit to running the airstone at night, with CO2 off, to provide surface current which will dissipate the now unneeded CO2 more rapidly. The fish get their oxygen from oxygen dissolved at the water surface, as well as the oxygen given off by the plants as they grow. Pearling on plants is oxygen being given off with the water saturated with oxygen. With the lighting and DIY CO2 that you have, you may not reach saturation with oxygen, but you should still have plenty for the fish.

Incidentally, I have a 29 gallon tank too, and, yes, it is too small. But, when I had a 125 gallon tank, it was too small too.

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post #7 of 8 (permalink) Old 04-15-2006, 08:30 PM Thread Starter
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I guess we would never be happy with the size of our tanks until they were built like a walk in living room. hmmm That's an idea. LOL

I don't remove the CO2 during the night. I try to remember to turn on the air stone when I turn off the lights but sometimes I forget. I don't see fish gasping in the am. But I do worry.

10 gallon hospital tank.
29 & 50 gallon - High Tech C02 enriched.
50 gallon Pond - Natural.
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post #8 of 8 (permalink) Old 04-15-2006, 09:49 PM
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This question gets asked frequently. Check out my post #13 on this topic in the following thread to get a feel for how dissolved oxygen can vary with/without nighttime aeration:

https://www.plantedtank.net/forums/ge...necessary.html
Are airstones necessary? - The Planted Tank Forum

Also check out post #2 in the same thread for more good references.
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