How much lighting for a 38g? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 03-06-2013, 05:39 PM Thread Starter
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How much lighting for a 38g?

Got a spare 38g and planning to use as a growout tank with pressurized co2 and ferts. Would a 96w pc fixture be sufficient? Not a display tank and not looking to get color out of plants. Just to grow them.

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post #2 of 5 (permalink) Old 03-06-2013, 06:38 PM
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What are the tank dimentions, what type of lighting fixture do you have? (brand)
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post #3 of 5 (permalink) Old 03-06-2013, 07:20 PM Thread Starter
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Re: How much lighting for a 38g?

36x12x18.

I dont have a light, just seeing what lighting would be needed. Nothing fancy

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post #4 of 5 (permalink) Old 03-07-2013, 07:34 PM
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96 watts are

good, and make sure mix some of the light bulbs with different spectrums, plants will love it.
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post #5 of 5 (permalink) Old 03-08-2013, 02:01 AM
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The tank is 18 inches high, so if you have 3 inches of substrate, and the light sits on the top of the tank, it will be 15 inches from the substrate. So you probably want a 36 inch long light, and one that will give you 40 - 80 micromols of PAR at 15 inches distance. Look at the charts in Lighting an Aquarium with PAR instead of Watts to see what would work. Also, for a good LED light, look at the charts in Finnex RAY II & FugeRAY PAR Data

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