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Old 06-18-2009, 01:05 AM   #1
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DIY CO2 for 15g planted tank

Okay so i want to make a co2 system, but now my main concern is that the diffuser (in my small tank) could be a real eyesore. i need an efficient diffuser that isnt big. i suppose if i have to i could maybe hide it with some plants if i absolutely HAVE to.
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Old 06-18-2009, 01:08 AM   #2
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what kind of filter do you have?
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Old 06-18-2009, 12:51 PM   #3
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I hear that a chopstick shoved into the airline and cut off makes a great diffuser, since the bamboo is super porous. If you want something that is more like 100% diffusion, try putting the line close to the HOB filter intake (if you have one). The impeller will chop up the bubbles nicely. Also, be sure that the water level is nice and high, so the water coming out of the filter doesn't break the surface tension.
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Old 06-18-2009, 12:54 PM   #4
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You could put the airline from the co2 into a filter sponge.
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Old 06-18-2009, 04:41 PM   #5
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Ive also heard the chopstick works real well, and it isn't very big at all.
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