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Old 12-04-2012, 06:30 PM   #1
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Default Lighting and glass covers

I am lighting a 55 gal with a Corallife 2 tube t5ho 48in fixture (6500k bulbs) for 11 hours a day. To keep the evaporation down am using glass covers. Does anyone know what effect the covers would have on the effectiveness of the lamps?
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