The Planted Tank Forum - View Single Post - Convert Lux meter to PAR meter?
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post #154 of (permalink) Old 10-13-2012, 01:54 AM
Algae Grower
Join Date: Sep 2010
Location: USA
Posts: 111
So if I use the 4 filters in your final versions, how would I tell that the lux meter is reading par correctly (or close to it)?
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