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Old 08-17-2014, 06:37 PM   #1
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Is this enough light for most corals?

We have a 90 gallon saltwater aquarium that measures 48" long, 24" high and 18" deep. We have the Current USA Orbit Marine LED in 48". My wife and I are wandering if this LED light is strong enough for corals or if it should be a fish only tank. We currently have a few mushrooms and zoas but are contemplating making it a fish only tank and moving the corals to another aquarium if the lighting isn't good enough. What are your thoughts? Thanks for the input. http://www.drsfostersmith.com/product/prod_display.cfm?c=3578+3733+10704+27873&pcatid=27 873
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Old 08-17-2014, 07:12 PM   #2
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Not enough light. Even if the LEDs were top quality bulbs at 120 lum per watt, you would need closer to 200 watts, not 36. Sorry. And likely those lights are much lower quality around 60-70 lum per watt or lower


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Old 08-17-2014, 07:40 PM   #3
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Softies maybe, but you'd probably have to put them higher up on the rock work.
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Old 08-17-2014, 08:43 PM   #4
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I have the same fixture over a 40b tank and its "just" enough for me to keep softies and some LPS. But a 90g tank is waaaay taller than mine so it wont really do much for you unfortunately. I love all the features but its just too limiting of a light.
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Old 08-18-2014, 03:26 PM   #5
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Its a cool light, I just wish they had put some better LEDs in it. Or more.


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Old 08-21-2014, 01:20 PM   #6
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so after some thought, my wife and I have decided to make the 90 gallon tank a FOWLR.
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Old 08-22-2014, 06:43 AM   #7
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Fish only, those are like .5 watt led's. You need 3 watt led's
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Old 08-22-2014, 03:17 PM   #8
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Quote:
Originally Posted by Holygral View Post
Fish only, those are like .5 watt led's. You need 3 watt led's

Myth! Or a misinterpretation of actual factors.

I would take 2 high quality Cree 0.5 watt LEDs at 120+lum per watt over a lower quality 3 watt led at only 50 lum per watt.

It's all about the quality of the LEDs and SIZE has absolutely nothing to do with it.


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Old 08-22-2014, 03:47 PM   #9
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What makes you think I was talking about off brand leds? I run Maxspect Razors, I am quite aware of led differences. Although I do not buy the theory that an 3 watts off brand is better than a .5 Cree
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Old 08-22-2014, 04:12 PM   #10
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Is this enough light for most corals?

Watts are watts, photons are photons. The difference is in efficiency. How many lumens do you create for that power draw. I have had great success with panels that had 120-1 watt LEDs and panels with 60-2 watt LEDs as well as panels with 40- 3 watt LEDs. If the lensing is right, they all work.

Maybe I'm too easy, but if a light will grow my GARF Bonsai this fast and retain it's bright purple colors, that's all I need.


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