The Planted Tank Forum - View Single Post - 12G Long Mr. Aqua w/ 26W CFL - Too little or too much?
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post #10 of (permalink) Old 09-26-2011, 01:56 PM
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Personally I think you'll have a very tough time keeping a nice carpet with that amount of light, especially without co2. So I think hobby is right in the regards to the dilemma. Most carpeting plants need more intense light than just a typical stem to keep growing low and tight.

I've grown HC in a 9.5" tall tank with two 9watt cfl bulbs and I could clearly see a big different how the HC grew on top of a 5" slope (closer to the light) and at the bottom (further from the light)
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