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#1
04-27-2012, 01:58 PM
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When I first installed my Radions, I started them at 30%, and they were still brighter than my old T5's. I then raised it to 40%, but noticed that my corals were shrinking a bit, so I dialed them back to 30%. Since I don't have any SPS (only softies and LPS), I thought I would go even lower and see how they do. I am currently running them at 20%, and corals are doing better than ever now. Seems like my softies just don't like bright light.
I have a 6ft tank, 18" deep, with 3 Radions 8" above the water. I use the natural mode setting, so it gradually ramps up and peaks at mid day, and then down again to dusk. Then a low blue for moonlight thru most (totally off for about 3 hours) of the night.
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Reef Pilot's Undersea Oasis: http://www.canreef.com/vbulletin/sho...d.php?t=102101 Frags FS: http://www.canreef.com/vbulletin/sho...d.php?t=115022 Solutions are easy. The real difficulty lies in discovering the problem. 
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#2
04-27-2012, 02:08 PM
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From a mathematical perspective, you will have more uniform par if the lights are higher up, assuming you have lights strong enough. There will be a drastic difference between par at the surface and at the sand bed if the lights are in the rim. If you can raise the light up a few feet the difference in par will be less.
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#3
04-27-2012, 02:09 PM
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there is also the factor that constantly running an LED at 100% will cut its lifespan almost in half.
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#4
04-27-2012, 03:06 PM
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Quote:
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Brad
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#5
04-27-2012, 03:22 PM
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Quote:
what i think you mean running them at a lower percent will increase life. I'm curious as how long till the spectrum starts to change, if at all.
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Can't is the cancer of happen - charlie sheen 20g reef 25g sump, DIY led form modular led, 2 false percs 
Last edited by troni; 04-27-2012 at 03:25 PM.
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#6
04-27-2012, 03:28 PM
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Quote:
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I'm not 'fallow' you must be talking about my tank!
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#7
04-27-2012, 03:43 PM
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The way I approached buying my SOL's was sort of trial basis. I only ordered one the first time, I was 90% certain I would need a second with a 48" tank but with shipping being free for one or two I decided to see what one unit looked like. It took about five minutes to decide one was not enough and ordered the second. This same principal will work for anyone even if you had to start with say 3 or 4 and add units if needed.
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#8
04-27-2012, 03:51 PM
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Quote:
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Brad
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#9
04-27-2012, 07:36 PM
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Quote:
as for the life span, running them at 50% or 100% will make no difference on life span if the junction temp is the same, so in other words if you can keep them below there max junction temp even at 100% the life will be longer. this is why it is very important to think out your cooling (heatsink/fan) setup when building your own LEDs. If you buying them you would assume the company did there home work to be able to allow them to be run at 100% while keeping the junction temp under the max. Steve
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 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*Some strive to be perfect.... I just strive.
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#10
05-02-2012, 05:58 AM
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I have a 6 ft tank with mixed sps and some LPS. I am running only 2 ai Sol, I run the lights from 8am to 12am slowly ramping up.
At 5 pm my lights run at 55%white 75 both blues till 8pm any brighter and things get upset, i don't have a deep tank and have the lights about 10inch above water. Everything is growing amazing in my opinion.
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Hybrid Mode
