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Mark Peterson
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Posted: September 11 2010 at 5:13pm |
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Thanks for the information from so many of you. Today I had a chance to really start my research. Wikipedia has this to say,
"LEDs are being used increasingly commonly for aquarium lighting.
Particular for reef aquariums, LED lights provide an efficient light
source with less heat output to help maintain optimal aquarium
temperatures. LED-based aquarium fixtures also have the advantage of
being manually adjustable to produce a specific color-spectrum for ideal
coloration of corals, fish, and invertebrates while optimizing
photosynethically active radiation (PAR) which increases growth and
sustainability of photosynthetic life such as corals, anemones, clams,
and macroalgae. These fixtures can be electronically programmed in order
to simulate various lighting conditions throughout the day, reflecting
phases of the sun and moon for a dynamic reef experience. LED fixtures
typically cost up to five times as much as similarly rated fluorescent
or high-intensity discharge lighting designed for reef aquariums and are
not as high output to date."
I was pleasantly surprised at the amount of homework that was done for their article and looking forward to learning more.
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Mark Peterson
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Posted: September 11 2010 at 6:51pm |
Ahanix wrote:
I honestly loved my Cree's.
Cool White and Royal Blue are ones that you want to look for, if you go a 50/50 combination, it has a 14k mh look to it with a hint of purple.
Also you can now buy Green and Red LED's that will bring out more color from your coral. I'm excited to get my t5 fixture torn apart so I can do a retro with it this fall. |
Well, that's just it, isn't it. You hit it right on the head.  More than any other aspect in this hobby, lighting is a matter of personal preference. The worst tank illumination I know of is 50/50, nor do I like the 14K MH look. It looks "gray" to me. Fluorescing greens and reds are awesome, but not at the expense of the rest of the spectrum and coral sustainability. I want the tank to thrive and I want all the colors of the rainbow. If overheating, small tank size and space were not an issue, I'd already be installing colorful T5HO's.
Edited by Mark Peterson - September 11 2010 at 6:59pm
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rwccomptech
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Posted: September 14 2010 at 2:05am |
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I'm thinking of building a fixture for a class project and if i get good par i could build you one here is my set up blue 470nm=x white about 10000k=q warm white about 6500k=o aqua 570nm=a violet 420nm=v UV 405nm=u
x x x a v a x x x q o q q o q a a a u a a a q o q q o q x x x a v a x x x
If I have the WL map right it should be very close to full spectrum. I could even get a bigger ps and switch it to this.
x x x a v a x x x a v a x x x
q o q u q o q u q o q
a a a u a a a u a a a
q o q u q o q u q o q
x x x a v a x x x a v a x x x
Its hard to do a good diagram but yeah Just let me know
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Ron
20g
60x turnover
30" current pc fixture
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Mark Peterson
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Posted: September 14 2010 at 9:35am |
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What about pink? There needs to be some reddish hue or it will still look less than desirable to me. This is not simply personal preference for color, but for coral health as well. The Actinic White Fluorescent tubes, which emit a pink/purple/orange/blue light give the aquarium a quality of appearance and growth which is very important to tank health. IME, it grows coralline algae like crazy. And when Coralline Algae grows well, coral also grows well.
What is a WL map?
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rwccomptech
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Posted: September 14 2010 at 11:13am |
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Ok red is covered by violet, red led's dont even nav right, the the led's i'm using the 90% of the spectrum is being used.
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Ron
20g
60x turnover
30" current pc fixture
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rwccomptech
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Posted: September 14 2010 at 11:16am |
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BTW WL map is a wave length map that shows what colors and the intensity of the color. You find it on most of any aquatic bulbs.
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Ron
20g
60x turnover
30" current pc fixture
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rwccomptech
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Posted: September 14 2010 at 11:34am |
here is a WL map for the sun  if you notice the intensity of every color is pretty much right about at an average of 41415 counts. HEre is your average LED Fixture running about a 14000-15000k look  This averages at about 15302 counts here is a red led  This one barley peaks at about 6000 counts here is the violet led [imghttp://www.superbrightleds.com/images/spectrals/RL5-V1015_sp.gif[/img] As you can see it covers two aera's and has an average count of about 9400 or so The LED's ive chosen are that way for a reason, but you dont have to buy it, i never said you had to. I just thought I'd be nice and offer something with a wide spectrum I just wish you would think before you ask questions or ask questions that you could answer you self.
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Ron
20g
60x turnover
30" current pc fixture
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Lewy
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Posted: September 14 2010 at 12:24pm |
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ouch!! I guess we are all experts at something.
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40 gal w/ 20 sump
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bur01014
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Posted: September 14 2010 at 12:30pm |
this is just weird....
"ask questions that you can answer yourself".....
where am i?
Edited by bur01014 - September 14 2010 at 12:32pm
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Ryan Thompson
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Posted: September 14 2010 at 12:46pm |
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LOL!
This thread just went right downhill in like 4 posts.
To rwc,
Good luck getting your LEDs to blend properly with them scattered all around. A good high powered UV LED costs about 45 bucks for each one. It has also been proven that UV is not needed for coloration of corals.
The major drawback to LEDs is that they are so limited in spectrum. Couple that with LEDs being a point source light and you have issues with the light blending properly. You will get spotlights of color all over the tank. I've seen people try to add red and other colored LEDs and they never turn out right.
I hope LEDs take over aquarium lighting but until they can create an LED with a much broader spectrum, they will always fall short in my opinion.
But I don't know anything about the subject of lighting.
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Mark Peterson
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Posted: September 14 2010 at 1:53pm |
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Oh that's what I call the light spectrum. Wavelength is one word, that's why I couldn't figure it out.
The biggest concern I have right now is that individual LED's emit only sufficient intensity of such a narrow band of the spectrum/WL map that it would take a lot of different colored LED's to give the light that I want not only to give proper color rendering of the coral but also provide the right wavelengths needed to thrive.
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rwccomptech
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Posted: September 14 2010 at 1:59pm |
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from what ive seen the degrees of the optics should help with the blending alot, hopefully if i need to i cause just add an acrylic/ glass lens and bevel it a bit to help with the blending
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Ron
20g
60x turnover
30" current pc fixture
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Crazy Tarzan
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Posted: September 14 2010 at 2:27pm |
Mark, the cree's are about the size of a quarter mounted on discs. You can group them together to help with spot lighting.
Consider this--you can get Royal Blue (RB), Cool White (CW 6500k+) and Warm White (WW ~2500-4000k), and put one of each in groups of 3, and wire each color separately with a dimmable ballast. They you simply install dimming controls on one end of the fixture and fin tune the color to what you want, while picking up most of the light spectrum.
I know if I run only my CW my tank looks very much like when you are in the shallows snorkeling in the ocean and the colors change noticeably from when I'm running both CW and RB together.
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Was that in there yesterday? Casper--WY windier than ?
Down to a 20, soon to double or nothing
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thefu
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Posted: September 14 2010 at 2:50pm |
Crazy Tarzan is right, the best set ups use two or three colors and dimming on each color then you can get the color balance you like. Also, you can read all you want online and see pics online, but in reality you have to see it in action on someones tank and play with the dimming and then make up your mind if is right for you (LEDs are notoriously hard to photograph). I have a simple setup on my sons 14g rimless nano and I have a much bigger configuration on my 210 with dimming controlled electronically via my Apex controller. I can instantly change the lighting look from my iphone while standing in front of it. I do think that you can get a much fuller spectrum with something like T5 but I really like the flexibility, power consumption, and lack of bulb replacement costs.
If anyone ever wants to come over, see my tanks, and chat about LED options, just send me a PM.
Or, if you want to learn more online, just google utah aquarium led
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Mark Peterson
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Posted: September 15 2010 at 5:24pm |
 Does anyone have any fixtures that have more than white and blue? Sorry, but if it doesn't take good pictures then it's not going to look good to ordinary people.
It's gotta make the tank look colorful like this with a tad more fluorescent greens and reds:
Edited by Mark Peterson - September 15 2010 at 5:26pm
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thefu
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Posted: September 15 2010 at 5:44pm |
My tank has just as much color as the above photo...at least to my eyes and those that have seen it. The reds, yellows and oranges pop like crazy on my superman and poker-star montis, red planet, and bird of paradise birdsnest. Cameras do not work like people's eyes. I do not know exactly why it is harder to photos of LED lit tanks, it just is. It is not that it can't be done, I just see less good photos of tanks I know look way better in person.
If you wanted to add other colors of LEDs, you could do it easily and you could adjust the spectrum with dimming. Many new commercial fixtures are doing this. I have not yet seen any will wow me in comparison to the standard AquaIllumination or properly built DIY fixture. Again, I think T-5 with some LED for shimmer will always have the best color balance for a while, but I like the cost advantage (heat, bulbs, power) and environmental advantage at the price of a bit less spectrum that doesn't really bother me...this is even more the case the larger you go in aquarium size.
Oh, and back to the thread topic. LED would be a great solution in this application even if it did not meet your personal strict needs on spectrum coverage. Most that would see the tank would consider it perfectly lit I am sure.
Edited by thefu - September 15 2010 at 5:46pm
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Laird
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Posted: October 16 2010 at 7:07pm |
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Come see my LEDs that are just the whites and blues and tell me you don't get all the colors to come out.
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Indefinite hiatus from sw aquariums.
Once I have my glorious return I'll set back up the following. 50 Gallon rimless cube. 180 Gallons mixed reef paradise
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