bubbler in planted tank - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 06-14-2017, 12:09 AM Thread Starter
Algae Grower
 
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bubbler in planted tank

Is it over-kill to have an air stone? It doesn't look like most people have airstones in their tanks on this site from the various journals and photos I look at, so I was wondering if this was coincidence or for a functional reason.

I'm adding a pressurized CO2 system this weekend and I already have an airstone in my planted tank, and I'm wondering if the airstone is adding any benefit or just aesthetics...because I have no where to put the CO2 diffuser and it would be great to stick in the same spot, run the CO2 tubing down the same corner etc.
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post #2 of 4 (permalink) Old 06-14-2017, 12:35 AM
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My understanding is that airstones help increase oxygenation by creating movement/turbulence at the water's surface. The same surface turbulence, regardless of how it is created, will also off-gas CO2, thereby negating your injecting CO2 into the water. At least this is my layman's understanding.

I do run an airstone for a few hours at night, though, to help with oxygenation a bit.


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75 gallon planted in progress Radion XR15FW x 2 w/Reeflink Fluval G6
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post #3 of 4 (permalink) Old 06-14-2017, 12:37 AM Thread Starter
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Quote:
Originally Posted by DBridges View Post
My understanding is that airstones help increase oxygenation by creating movement/turbulence at the water's surface. The same surface turbulence, regardless of how it is created, will also off-gas CO2, thereby negating your injecting CO2 into the water. At least this is my layman's understanding.

I do run an airstone for a few hours at night, though, to help with oxygenation a bit.
This is about my level of understanding as well but was wondering if the surface agitation & CO2 loss was minimal compared to the benefits the fish may get. Running the airstone at night sounds like it might be a good idea though.
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post #4 of 4 (permalink) Old 06-14-2017, 12:54 AM
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If you run CO2 injection the plants, ( if they are healthy and growing..) take the place of the airstone and do a far better job of increasing the dissolved oxygen in the water. Running one at night might help, I've never seen the need as you off gas CO2 reserves you'll need when the lights come back on.

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250 gallon stock tank, "pond"
20 gallon H CBS Shrimp tank

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