Current / Wave - The Planted Tank Forum
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post #1 of 3 (permalink) Old 08-24-2005, 07:44 PM Thread Starter
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Current / Wave

Are current needed in a planted tank? SHould I get a powerhead for that?

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post #2 of 3 (permalink) Old 08-24-2005, 07:52 PM
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My (very limited) understanding is that plants can provide o2, and surface current can depleate co2, so my wag is they are not needed in a planted tank. Personally, I like the aesthetics of surface currents and intend to keep some.

I use a cannister filter. All of the current is via the spray bar - so it is not excessive. It is enough, however, to make point source lights (moon light, metal halide) dance a little.
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post #3 of 3 (permalink) Old 08-24-2005, 08:49 PM
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Surface currents are not necessary although a limited amount will keep the surface films that tend to form down. If kept at a reasonable level it will not cause excess outgassing of CO2. Also there does need to be a certain level of circulation of the water within the tank to keep the nutrients and wastes from building up in one area. If you have a cannister this can be accomplished with a spraybar if you have a HOB filter it is a little more difficult but can be accomplished.


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