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Old 01-05-2005, 07:09 PM   #1
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How much light for a 40 gallon refugium?

I am going to put live rock rubble and sand in it. THe rock has nice purple coralline algae on it which I would like to keep. How much light will I need. I plan on having the refugium lights on the 12 hours that my main lights are off.
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Old 01-05-2005, 10:04 PM   #2
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I would think 3wpg should be enough for a fuge. Maybe less for just coralline but I'm not sure.
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Old 01-07-2005, 12:36 AM   #3
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Don't forget that unlike your tank, your 40 gal fuge will probablyonly about 10 gallons of water in it. A 28w coralife fixture would be fine.
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Old 01-07-2005, 01:21 AM   #4
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The way I am setting my fuge up will enable it to have about 30 gallons. Bulkheads will be about 3" down from the top and the drain will be a piece of pvc that is slotted with an elbow on the end of it to prevent overflows. You can see the refugium I am doing at www.lifereef.com under custom work.

Will 28w still be enough?


Attached is a pic of the refugium type. Mine will be larger
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Old 01-08-2005, 08:51 PM   #5
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Go with the coralife that has the 65w bulb to be sure. It really depends on what else your going to have in there. Macro algae doesn't need much either. I had good coraline growth in my 125 with the original 30w NO bulbs.
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Old 01-08-2005, 09:02 PM   #6
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Great thanks.
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