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Thread: Lumens and PAR
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post #36 of (permalink) Old 02-17-2003, 10:06 PM
Algae Grower
Join Date: Feb 2003
Location: Missouri
Posts: 6
What fluorescent lighting aspect is most critical? Color Temperature, CRI, Lumens or total wattage? I've read that the ideal color temperature range is in the 5000k to 7000k range, CRI greater than 85 and Lumens in the 2000 range.

However I have a single 15 watt 18" GE Aqua Ray on a 10g which is rated @650 lumen and a whopping 9400k color temperture. The water sprite is taking over the tank.
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