The Planted Tank Forum - View Single Post - Glass top+raised light?
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Old 01-30-2013, 07:24 AM   #3
lochaber
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I wouldn't think there would be a significant difference, but I hadn't thought about the effects of condensation.

Kinda interesting.

even so, I think it would just act somewhat like a diffuser, and scatter the beams, as opposed to absorbing/blocking/reflecting them. not certain though.

If it is just refracting/scattering, I don't think it would have a big effect unless you are using a focused light spread on a fairly deep tank. Optics really aren't my thing though.
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