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Old 06-08-2011, 10:51 AM   #1
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Good morning

Going on the general idea of 3 watts per gallon for a planted tank, I can't find a CF or even twin tube T5 that meets the watt requirement. There are a few LED lights out there that would fit the tank but are these compatible with a freshwater planted or are the lights too much? I am looking at a 20g but will eventually have a 40 gallon. The basic 24", even in a double T5 HO, only adds up to 48 watts.

For teh LED, I am looking at the Marineland Double Bright LED Lighting System.

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Old 06-08-2011, 10:54 AM   #2
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48 watts of HO T5 on a 20 gallon will be oodles of light. You could always add a second fixture when you up grade to a 40 gallon.

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Old 06-08-2011, 11:58 AM   #3
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T5HO's are a whole different animal. I'd recommend reading through Crepe's lighting guide as I think it should help you understand the wattage ratings of each style of light.

Lighting Guide for a Planted Tank
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