The Planted Tank Forum - View Single Post - Finnex PAR - Am I reading it right?
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post #10 of (permalink) Old 02-12-2013, 09:59 PM
Planted Tank Obsessed
Ach1Ll3sH33L's Avatar
Join Date: Mar 2012
Location: Socal
Posts: 343
keep in mind those par readings are taken in open tanks, with no water. So they dont account for water surface reflection etc. you will have less par than what is shown in the chart, so you may find you dont need to reduce the lighting
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