The Planted Tank Forum - View Single Post - redsea's 20g Long Build
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post #9 of (permalink) Old 01-19-2013, 06:23 PM
Wannabe Guru
Brian_Cali77's Avatar
Join Date: Mar 2010
Location: Scottsdale, AZ
Posts: 1,443
Which Ecoxotic lighting are you looking at? Well a 20L is 30" x 12" x 12".. taking into consideration 2 to 3 inches of substrate, you'll have to suspend the light like 10" above the tank.
According to this:
Ecoxotic Panorama Freshwater Module
PAR Data(Source) PAR Vs. Distance from source
161 PAR @ surface (3" through air)
101 PAR @ 7"
60 PAR @ 12"
36 PAR @ 18"

Last edited by Brian_Cali77; 01-19-2013 at 06:38 PM. Reason: typo and formatting
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