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Old 06-16-2011, 10:25 PM   #31
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Quote:
Originally Posted by Gti_Leo View Post
i couldn't find any growth shots i saw it and was looking
That was my point. You won't find any because most likely, those corals came in (imported) looking that good and don't look that good anymore (typical of mariculture). I like to see colonies that size or larger grown from frags.
I am not debating that LEDs or T5HO work good, look good and are efficient, but nobody at this point in time can say they are better than halides in every aspect as you are trying to claim.
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Old 06-16-2011, 10:28 PM   #32
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You guys are still missing the point. Both T5 and MH will support anything when setup properly. You two could sit here until the end of time debating and never agree. On a more informative question, I have a question Leo. I am thinking about doing two of these over my 220, do you think it would provide sufficient light to keep anything, clams included?
Aqua Medic Ocean Light T5 Light Fixture with LEDMoonlights, 36", 8 x 39W - AquaCave
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Old 06-16-2011, 10:29 PM   #33
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I would prefer halides, but not the cost associated with them. lol
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Old 06-16-2011, 10:29 PM   #34
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Tell that to nineball, who has switched 100% to Orphek LEDs from halides on his 1350 gallon tank. He measures PAR, and a bunch of other things I didn't know existed. I think LEDs are superior in every aspect, efficiency, brightness, heat output, etc.

You don't dump $10k+ on a lighting system, taking down thousands of dollars worth of halides if you don't have a reason behind it.
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Old 06-16-2011, 10:33 PM   #35
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they were actually browned before he upgraded to T5s

plus T5s have been around for years and have proven to be good and still improve in PAR output
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Old 06-16-2011, 10:35 PM   #36
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Really Leo? Did he have PCs or halides before T5s?
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Old 06-16-2011, 10:37 PM   #37
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4 halides 14000k 150 watts
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Old 06-16-2011, 10:46 PM   #38
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In our research LEDs came out superior
in PAR and PUR. PAR is photosynthetically useful radiation
And is different than PAR which is photosynthetically active radiation. It's all about color spectrum and which uv lighting is usable by the plant or animal. Zooanthella needs a 400- 550
Nanometer range in color spectrum. 620- 720 is the red bandwidth which is the
range of the upper spectrum necessary. Flourescents and compacts produce a lot of greens and yellows which aren't usable. Halides produce good PAR & PUR but quickly begin to fail as bulbs age. Here is a
Pretty good Link to explain the needs of the color Spectrum.

http://www.americanaquariumproducts....ng.html#kelvin
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Old 06-16-2011, 10:47 PM   #39
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Wow, and they were browning out under that? I'm assuming he wasn't buying the bargain brand kind, so that's quite impressive. If I could cough up the money I'd go for some Orpheks on my next tank, but looks like I'll be going with T5HOs. Was going to go for halides on my cube, but I'd rather not deal with the heat (tank is hovering around 80 with PC bulbs/LED strips)
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Old 06-16-2011, 10:51 PM   #40
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I use 50/50 PC bulbs so I guess that makes up for the lack of blues otherwise. I also have a 420nm LED strip which must help somewhat. But yea, I'm 100% sold on LEDs being the best for sustaining corals and replicating sunlight.
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