Use of air stones in planted tanks - The Planted Tank Forum
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post #1 of 2 (permalink) Old 09-06-2013, 09:01 PM Thread Starter
Algae Grower
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Use of air stones in planted tanks

I am in the process of consolidating my 40 gal breeder and my 55 gal planted aquariums into a 125 gal to 150 gal large planted tank. My 40 gal has no CO2 just flourish and liquid micro nutrients with T5HO lights probably a bit too close to the top of the tank as there is hair algae on rocks and wood - this tank also has an air stone going.
My 55 gal while also planted has pressurized CO2 measured by a drop checker and receives both Macro and Micro dry nutrients also under a T5HO light but suspended 12 plus inches above the glass lids with virtually no algae present.
My question is - do most people in the hobby of planted aquariums use an air stone or just agitate the surface of the water water with a filter output.
I recently viewed a video during which the owner of a large, beautifully planted aquarium stated that it was a mistake to add an air stone to a planted tank as this would affect gas exchange and other parameters in the aquarium and it was better to just have enough filter output to agitate or move the surface water without creating bubbles? Just looking to find out if there is a consensus because I will not add one if it is doing nothing for the fish or plants! Thanks to all responding members
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post #2 of 2 (permalink) Old 09-06-2013, 09:49 PM
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Many people do run air stones in their planted aquarium, but only after lights out if they inject CO2. This helps get rid of the CO2 and provides oxygen for the fish. During the day, it does just the same, but you don't want that to happen then. Just a little surface agitation should be enough. If everything is balanced during the day, you have harmony between CO2 being injected and produced via respiration by the fish and the plants using that CO2 to produce oxygen that is used by the fish.
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