The Planted Tank Forum - View Single Post - Finnex Ray2 12"
Thread: Finnex Ray2 12"
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Old 02-23-2013, 10:09 PM   #7
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There might be a local planted tank hobby club in your area that has a PAR meter that someone loans out or rents. Many of them do.

With only one fixture to test it shouldn't take long to test it.
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