Filters vs CO2? - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 01-15-2011, 07:43 PM Thread Starter
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Filters vs CO2?

How do you find a balance between filtering without sucking all the Co2 out of your system?
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post #2 of 7 (permalink) Old 01-15-2011, 07:50 PM
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What do you mean sucking all the co2?
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post #3 of 7 (permalink) Old 01-15-2011, 07:52 PM Thread Starter
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I thought since filters increased aeration the CO2 naturally leeched out of the system due to the increased air contact?
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post #4 of 7 (permalink) Old 01-15-2011, 07:59 PM
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surface agitation is the main reason why filters are associated with removing CO2. therefore a HOB will create more surface agitation which
= removing more CO2, while a canister filter's output will agitate the surface very little if at all. also the water in a canister will not be exposed to open air like in a HOB filter. sorry for the long answer! but a canister filter will be better for retaining CO2 than a HOB

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post #5 of 7 (permalink) Old 01-15-2011, 07:59 PM
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If you have too much turbulence on surface youll lose co2 but if the intake/outtake pipes are below water level than surface is calm and co2 will be preserved
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post #6 of 7 (permalink) Old 01-15-2011, 08:27 PM Thread Starter
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Ahhh, so canister filters are the key...

ty
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post #7 of 7 (permalink) Old 01-16-2011, 01:25 AM
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You can have turbulence too, if you want to run a HOB. It just means you have to inject more CO2. It's not as if all the CO2 instantly offgasses when you turn on the filter. It's continually leaving the tank anyway, even if there's no surface movement.
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