How much lighting for a 38g?

TheGuy · 03-06-2013, 05:39 PM

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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latchdan · 03-06-2013, 06:38 PM

What are the tank dimentions, what type of lighting fixture do you have? (brand)

TheGuy · 03-06-2013, 07:20 PM

36x12x18.

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

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Silenced · 03-07-2013, 07:34 PM

good, and make sure mix some of the light bulbs with different spectrums, plants will love it.

**Hoppy** · 03-08-2013, 02:01 AM

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 http://www.plantedtank.net/forums/sh...d.php?t=184368 to see what would work. Also, for a good LED light, look at the charts in http://www.plantedtank.net/forums/sh...d.php?t=189944

03-06-2013, 05:39 PM	#1
TheGuy Planted Member (View User Tanks) PTrader: (5/100%) Join Date: Jan 2013 Location: With the fish.... Posts: 251	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. Sent from my SPH-L710 using Tapatalk 2

03-06-2013, 07:20 PM	#3
TheGuy Planted Member (View User Tanks) PTrader: (5/100%) Join Date: Jan 2013 Location: With the fish.... Posts: 251	Re: How much lighting for a 38g? 36x12x18. I dont have a light, just seeing what lighting would be needed. Nothing fancy Sent from my SPH-L710 using Tapatalk 2

03-07-2013, 07:34 PM	#4
Silenced Algae Grower (View User Tanks) PTrader: (20/95%) Join Date: Aug 2012 Location: Maryland Posts: 72	96 watts are good, and make sure mix some of the light bulbs with different spectrums, plants will love it.

03-08-2013, 02:01 AM	#5
Hoppy Planted Tank Guru (View User Tanks) PTrader: (54/100%) Join Date: Dec 2005 Location: Sacramento, CA Posts: 17,208	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 http://www.plantedtank.net/forums/sh...d.php?t=184368 to see what would work. Also, for a good LED light, look at the charts in http://www.plantedtank.net/forums/sh...d.php?t=189944 __________________ Hoppy

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03-06-2013, 06:38 PM	#2
latchdan Planted Member (View User Tanks) PTrader: (5/100%) Join Date: Sep 2007 Location: Paso Robles, Ca Posts: 237	What are the tank dimentions, what type of lighting fixture do you have? (brand)