The Planted Tank Forum - View Single Post - Glass top+raised light?
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post #6 of (permalink) Old 01-30-2013, 04:53 PM
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Join Date: Dec 2012
Location: Southern Maryland
Posts: 115
I asked this specific question on Hoppy's thread about lighting with PAR vs Watts, and he said that as long as there is no mineral buildup on the glass, there shouldn't be much of an affect on PAR because of the glass and condensation.
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