The Planted Tank Forum - View Single Post - Too much for a 20H?
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Old 01-07-2013, 05:26 PM   #5
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Hello again,

Personally I do not believe in the 2 periods instead of one, always did one photoperiod, and it must not be more than 12 hours a day because it seems after that the plants stop photosynthesis anyway.

With the CFLs directly over the lid, I did try it. It worked, but the CFLs were very close and the light not evenly distributed, having 2 bright spots in the water, I did not like that.

Plants and algae grower.
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