Will the grow plants? - The Planted Tank Forum

 
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post #1 of 8 (permalink) Old 01-07-2013, 01:04 AM Thread Starter
Algae Grower
 
Join Date: Oct 2011
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Will the grow plants?

I feel like if i put 2 par 20 5000k led bulbs on my 29 gallon bowfront it would be enough. I also have 1 18" t8 bulb on it think itwpuld be good enough? They are rated 50 watts equevent. Let me know whats up!
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post #2 of 8 (permalink) Old 01-07-2013, 01:32 PM Thread Starter
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Sooooo!
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post #3 of 8 (permalink) Old 01-07-2013, 03:32 PM
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Hello,

5000K will grow plants.

2 led bulbs of 20 watts must be sending a lot of light, difficult to say if you have low/med light though.

But I am quite convinced you can grow plants with that.

Michel.

Plants and algae grower.
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post #4 of 8 (permalink) Old 01-07-2013, 06:07 PM Thread Starter
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Its LED so its mesured in par but runs on 9.5 volts which is equal to a 50w other bulb. So in theory i would have 100 watts on the tank with the 2 lights. So 100/29= 3.44watts per gallon. So i hope this will work out!
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post #5 of 8 (permalink) Old 01-07-2013, 06:38 PM
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Let's see if the theory matches with practice

LEDs give light in a spot unless you are using a lens to scatter the light. 5.000K doesn't mean much. Plants love full spectrum, unless your LED emits light in a wide spectrum the color temperature does not tell the whole story.

I don't use LEDs myself but AFAIK it is better to use more LEDs of lesser power scattered in your fixture than two lighthouse graded emitters.
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post #6 of 8 (permalink) Old 01-07-2013, 09:16 PM Thread Starter
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It has a nice spread of light. They both overlap in the moddle of the tank. Would suplementing other colors and such help?
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post #7 of 8 (permalink) Old 01-11-2013, 12:10 AM Thread Starter
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So is this enough?
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post #8 of 8 (permalink) Old 01-11-2013, 12:11 AM Thread Starter
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