The Planted Tank Forum - View Single Post - Light intensity and duration effect on plants
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Old 11-18-2012, 01:24 AM   #5
Gold Finger
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Yup. More light for less time discourages algae with no ill effect on plants even below 8 hours. However, if you have WAY too much light as you say you can cut intensity (say by blocking some % of the light with tape or window screen) and then you can extend to 12hours. Too much light is an easy fix. Too little light plus too long a photoperiod as an attempted fix just grows algae.
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Ver. 2.0 bare bottom same tank another approach (defunct)

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Last edited by Gold Finger; 11-18-2012 at 01:24 AM.. Reason: clarity
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