too much light?

iCheetah · 02-26-2013, 02:34 AM

I have a 45 tall planted tank. I had one t12 the daylight bulb in the hood it came with and my plants were dying. The guy at my local fish store said I needed more light. Didn't tell me what I needed. So I got a hood and t5 super daylight and a max plant growth. I turned them on and it's way bright.

I wasn't sure if that was too much light. I also have florish excel and root tabs. Thank you.

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Dx3Bash · 02-26-2013, 03:06 AM

This chart may help. Keep in mind with higher light comes increased need for pressurized CO2. If you feel your lights are too bright you can always raise them a few more inches from the tank, or attach some window screed underneath your lights to block some out.

iCheetah · 02-26-2013, 06:01 AM

Thank you so much

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Rigio · 02-26-2013, 06:15 AM

That's a confusing graph.. So my tank is 24' tall going to be buying 4 T5HO I need to suspend it 12' above tthe aquarium to make it high light? So it would be smarter for me to go with 3 t5Ho's and suspend it 4' from the top?

**Hoppy** · 02-26-2013, 05:06 PM

The graph is obsolete, in any case. There are now so many different T5 lights available, made by so many different manufacturers, that the chart can't be correct. It was always intended to just be a rough guide, but now it isn't even good for that. See http://www.plantedtank.net/forums/sh...d.php?t=184368 for much better information.

02-26-2013, 02:34 AM	#1
iCheetah Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Feb 2013 Location: United States Posts: 20	too much light? I have a 45 tall planted tank. I had one t12 the daylight bulb in the hood it came with and my plants were dying. The guy at my local fish store said I needed more light. Didn't tell me what I needed. So I got a hood and t5 super daylight and a max plant growth. I turned them on and it's way bright. I wasn't sure if that was too much light. I also have florish excel and root tabs. Thank you. Posted from Plantedtank.net App for Android

02-26-2013, 03:06 AM	#2
Dx3Bash Planted Tank Obsessed (View User Tanks) PTrader: (3/100%) Join Date: Jan 2013 Location: Minnesota Posts: 352	This chart may help. Keep in mind with higher light comes increased need for pressurized CO2. If you feel your lights are too bright you can always raise them a few more inches from the tank, or attach some window screed underneath your lights to block some out. Attached Images __________________ Vids of my 75 & 120 G

02-26-2013, 06:15 AM	#4
Rigio Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Feb 2013 Location: Toronto, Ontario Posts: 67	That's a confusing graph.. So my tank is 24' tall going to be buying 4 T5HO I need to suspend it 12' above tthe aquarium to make it high light? So it would be smarter for me to go with 3 t5Ho's and suspend it 4' from the top? __________________ GBR1 - Spike GBR2 - TBD EBR - Blue

02-26-2013, 05:06 PM	#5
Hoppy Planted Tank Guru (View User Tanks) PTrader: (53/100%) Join Date: Dec 2005 Location: Sacramento, CA Posts: 17,208	The graph is obsolete, in any case. There are now so many different T5 lights available, made by so many different manufacturers, that the chart can't be correct. It was always intended to just be a rough guide, but now it isn't even good for that. See http://www.plantedtank.net/forums/sh...d.php?t=184368 for much better information. __________________ Hoppy

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02-26-2013, 06:01 AM	#3
iCheetah Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Feb 2013 Location: United States Posts: 20	Thank you so much Posted from Plantedtank.net App for Android