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Old 05-07-2012, 01:10 AM   #11
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Check out mr. X's thread... A lot of info on his LEDs... I know I'm getting them. He even has par ratings at different depths.
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Old 05-07-2012, 01:12 AM   #12
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New to the coral life, but my nano-601-LED has 25 3w LEDs and the person I purchased this kit from has sps and lps corals for a year in this light setup. They are great specimens, so I'd say LEDs are the way to go. Plus they are cool to the touch.
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Old 05-07-2012, 05:36 PM   #13
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Quote:
Originally Posted by Kickingfish View Post
Are they really getting good results with LEDs and SPS corals? Tech seems really new to me. Are they getting good growth rates with LEDs? Does anyone have good research resources to look at? Lot's of questions but love the idea of LED's but want to make informed choice to go with them.
I'm getting just as good results with the LED fixtures as I was with the 8 lamp T5 fixtures, when SPS is concerned. LPS is another story. It seems that some LPS does well under the LED units, but others must be almost totally shielded from the light. I'm finding a similar reaction from anemones. Some love the new light, while others are not enjoying it.

As for the ORA coral question- Most of them are pretty nice and have been in captivity for quite some time, and as a result are easier to keep than wild specimens.
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Old 05-08-2012, 12:14 AM   #14
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My understanding is that LED light is very "pin point" for a lack of a better term. The light directs straight down and doesn't have as wide an "arc, cone spread?" as other lights.
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Old 05-08-2012, 12:57 AM   #15
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For sps growth i dont think anything can match up to the growth rate metal halides give you. I have a tank with metal halides and another tank with t5s. The t5 will grow the sps corals but not at the rate metal halides will. Dont know much about the leds. I have a 150 tall and i love the fact that i can put stony frags on the floor and the grow great and dont loose color with the metal halides
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Old 05-08-2012, 01:04 AM   #16
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What wattage are your metal halides? What spectrum are you using? I too love what I have with the metal halides. Hate the heat but love the results!
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Old 05-08-2012, 01:19 AM   #17
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I have 2 250 watt metal hallides. I use coralvue 20k bulbs and coralvue dimmable ballasts. I have an open tank with no canopy. I removed the power compacts that came in the fixture and added 6 strips of powerbrite blue leds. With no chiller i have been able to keep my tank at 76 to 78 degrees. With the halides on my heater still turns on and it is set at 76 degrees
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Old 05-08-2012, 01:26 AM   #18
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Nice! I have a 90 gallon corner with 1 250 watt 15,000 K metal halide. Have a 1/6 HP chiller and maintain a temp of 76. I just have LPS and softies now but want to try SPS. I hear that 6,500 K give the best growth but you have a lot of yellow so have to add back in the blue with power compacts or I was thinking of doing strip LED lights.
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Old 05-08-2012, 08:52 AM   #19
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Yea 6500k will give you the most growth but the color is horrible. It is really yellow and the colors will not be very nice. I would go with atleast a 10k ot 14k and some atinics. My corals grow rather quickly with my 20k
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Old 05-11-2012, 07:19 PM   #20
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the right LED fixture will grow sps just as well as T5s or metal halides, with half the wattage, and no lamp cost.
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