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Old 11-26-2012, 11:21 PM   #1
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I know how many watt you need for t5 and such but need help picking LEDS for a new nano. I picked up an eclipse 12 the other day and want to try to fit some leds under the hood. Im looking at a 6 led 3watt ea fixture will this be enough for a 12 gallon? Their is also a 20 led x 3 watt but I think that would be overkill.


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Old 11-27-2012, 01:08 PM   #2
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Yeah they will definatly be good enough for corals

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Old 11-27-2012, 03:03 PM   #3
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Rule of thumb is that I would want 1 watt per gallon for fish only.
I suggest 2 watts per gallon for most soft corals, up to 3-4 watts per gallon for hard corals. Different LEDs have different lenses and produce different PAR levels. With some fixtures you can either move these numbers up or down.
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