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TOPIC: Coral's Reef Lighting Survey

Coral's Reef Lighting Survey 1 year 9 months ago #8297

LED_Lights

As we all know, this hobby is always changing and evolving.  New technologies and trends seem to always play a big part.  Over the last couple of years one of the biggest trends seems to be the use of LED lighting.  With that in mind I thought I would share the some what suprizing results of a survey completed by Coral Magazine.  According to a recent article by Coral Magazine 9,000 readers were asked to take a basic survey about aquarium lighting.  The first question was the most obvious: "Which of the following types of lighting are you currently using on your marine aquarium(s)?"  The reader was given a list that included the standard lights (T-5, Metal Halide, Power Compact, LED, etc) and were giving the opportunity to pick as many off of the list that they had in use.  The results were a little unexpected.  Most of the tanks that I have seen use metal halide and or T-5 fluorescent:

LEDs 32.2%

T-5 Fluorescent  26.6%

Metal Halide / HQI / HID  24.2%

Power Compacts  8.1%

T-12 VHO Fluorescent  3.6%

T-8 Fluorescent  2.3%

Natural Sunlight  1.4%

Plasma Lighting  0.2%

T-12 Standard Fluorescent  0.2%

The second question though had an expected result.  The question was "Which of the following types of lighting do you expect to be using on your marine aquarium(s) in five years?"  As you would expect the majority of the people surveyed picked LED lighting:

LEDs  54.3%

T-5 Fluorescent  15.4%

Metal Halide / HQI / HID  14.1%

Plasma Lighting  6.2%

Natural Sunlight  3.6%

T-12 VHO Fluorescent  1.5%

Power Compacts  1.3%

T-8 Fluorescent  0.3%

T-12 Standard Fluorescent  0.1%

CORAL-SO-400px_optIf anything I found the survey results to be interesting and I look forward to the September / October 2011 issue of Coral Magazine.  For the rest of the survey click on the Coral Magazine.

So what do you think?  Are LED's the "light of the future?"  What are your lighting plans for the next five years?

[photo: Fridaynightswings]

 

 

 

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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8298

Upgrade to the biocube will be LED of 12 white and 12 blue on dimming circuits here :)

They have been proven to grow and sustain marine life without the power strain of high power lighting. Win and win.

Plus... those with tstorm programs kick some major butt! :P
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8299

Same here. Upgrade to my 75 is a fully dimmable 60 LED setup. Using 4 60-48 Meanwell drivers and two 9 x 18 heatsinks. 2-1 Royal Blue - Cool White.
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8302

LEDs suck. Whoever made that heat sink with those LEDs did a terrible job. HAHAHAHAHA. jk jk. I do plan to continue to use LEDs. When I set the 120 up, I'll probably do 26 Cree XM-L cool whites on the ELN-60-48D, and run them at the full amperage the meanwell will push. For blues, I plan on using the XP-E Royal Blues 60 ea running in parallel on an HLG-185 driver. 6 strings of 12 LEDs. I think that will be sufficient to light a 120. I know there is a lot of talk with aesthetics, growth, and coral color. Honestly so far with the LEDs on my biocube, I LOVE the aesthetics, my corals pop like never before. My coral coloration is much more vibrant than under 2 400w Radiums. I am pulling color out in corals I never saw before. And the growth is remarkable. I have some green ricordias that Ive had since 2006, and have been under MH lighting, they maybe split once. Since they've been under LEDs (only 7 months) I have counted 21 mouths. Crazy.
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8307

I love this topic. On my 75g reef I ran 440W VHO and had relatively good success with acros, LPS, and softies, but the tubes were hot and they needed to be changed every 6-9 months. When I started planning for the 210g I decided to go LED, but I'm much less of a Do-It-Yourseler as many of you are, so I needed a reasonable plug and play system that wasn't the same money as a car. I decided to go with the Evolution 3G LEDs from ReefKoi. They rum 96x1W bulbs split 50:50 white and blue for 14K feel. I use 3 units over my 210 at 12" above the water. I get almost 300 PAR in the top few inches of the tank and that goes to 100 at the bottom, I can almost double those numbers by moving the light to 6", but the drop off to the edges is more dramatic. There is no spot light effect, and the distribution is awesome.

Here is a pic a few weeks after install. At the time I was battling a mini algae outbreak that has since died out. The few corals I have are doing very well with most of the frags doubling in size within a few months. The softies seem to love the conditions as the toadstool has more than doubled in the same period, and the monti cap and monti dig has substantial growth edges. I only dose a few oz of purple up weekly.

LEDs.JPG


The Evolutions are not for everyone. They have no bells and whistles-no dimming, no programing, nothing. The only perk is the white and blue are on and off seperately, so each can be individually set up on timers. The big advantage for me is I paid only $1000 bucks for three units total. I can only get one Orpheck or AI for that. Now I just need to finish the carpentry so I stop burning my retna. :lol:
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8316

That looks amazing!
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8320

Personally I'm not totally sold on LEDs just yet...I think the technology has come quite a ways and eventually LED technology will prevail in reef lighting. I think the results of this survey are more of a response to the "cool factor" of adopting a new technology more than anything that has been "proven" over the long term. When I start to see tanks that have been established for 2-3 years with substantial coral health/growth, then I will be ready to make a switch.

There seem to be alot of variables and unknowns yet...ratio of white/blue, angles, distribution, etc, etc...also, I don't know that I've seen LED setups that make use of reflectors? it seems like any lighting technology could make use of reflectors to increase the intensity.

I haven't researched into this yet but I'm also going to be interested to see the spectral output of the LEDs that people are using now...I think the term "PAR" is used pretty loosely at this point as more important than actual PAR is the PUR (photosynthetically useable radiation) put out by lights. Bandwidths between 400-550nm and 620-700nm are those that are absorbed by the photopigments in zooxanthellae to stimulate photosynthesis. LEDs could be putting out significant light between 580-600nm which would boost PAR but would be pretty useless as far as coral growth is concerned. It just seems to me like people are using 50/50 ratios of white/blue LEDs because they "look" good versus what is really good for the corals and this is where I think more work needs to be done before I'll be making the switch.

But I do appreciate all the early adopters and pioneers who are trying out this exciting new technology. I personally think plasma lighting will prove to be a great option in the future as well.
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8321

I agree with a lot of your observations. It wouldn't be the first time the "cool factor" caused a lot of sales :lol: . I think the potential is there but I would also like to see some longer usage results and studies.
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8324

jb61264 wrote:
There seem to be alot of variables and unknowns yet...ratio of white/blue, angles, distribution, etc, etc...also, I don't know that I've seen LED setups that make use of reflectors? it seems like any lighting technology could make use of reflectors to increase the intensity.

I agree with this as well but with T5 there are so many different choices, are the problems the same? Color variation, temp of bulb, old vs new bulbs etc. I think if we compared "new" systems it may be vastly different than the same system 6 - 9 months down the road.

For the reflectors they do have a bunch of different types available. I think there are 3 main "angles" available. 40/60/80 degrees. The ones that dont have any optics just dissipate the light output in a 180 degrees, wasting a ton of light. Obviously focusing the light will improve par readings and overall results.

There are a number of posts on the Reef Central about the growth from LEDs but I always take advice from people I dont know with a bit of skepticism. For me, even if PAR is exactly the same and growth is the same I am excited for the lower amount of energy used and the reduced amount of bulb replacement.
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8422

Skipper wrote:
I agree with a lot of your observations. It wouldn't be the first time the "cool factor" caused a lot of sales :lol: . I think the potential is there but I would also like to see some longer usage results and studies.

wagonwithfamilies-2801.jpg


Happy to blaze the trail... B)
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8424

Well, we have quite a group of LED bandwagoneers. We'll have to keep posts up to show the awesomeness in the months.
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8426

jb61264 wrote:
I haven't researched into this yet but I'm also going to be interested to see the spectral output of the LEDs that people are using now...I think the term "PAR" is used pretty loosely at this point as more important than actual PAR is the PUR (photosynthetically useable radiation) put out by lights. Bandwidths between 400-550nm and 620-700nm are those that are absorbed by the photopigments in zooxanthellae to stimulate photosynthesis. LEDs could be putting out significant light between 580-600nm which would boost PAR but would be pretty useless as far as coral growth is concerned. It just seems to me like people are using 50/50 ratios of white/blue LEDs because they "look" good versus what is really good for the corals and this is where I think more work needs to be done before I'll be making the switch.

I like the idea of not using so much energy on lights but till some real proof comes out i will stick with the 216w T5 and 500w MH light i'm running on my 75 gallon. I also have a 75gal with 324w T5 that has corals growing well. These have already been proven in the hobby so i'm not telling you anything you didn't already know. I also am running 432w T5 on my 40gal breeder tank i'm using for a frag tank and everything is growing fast. I have no tanks with led's so maybe when they are proven to be better light i will jump on the wagon... Yee ha!! I would love for my electric bill to go down $$$ and thats not going to happen with MH and T5 even though the T5's use less than MH. That is why for my second 75gal i went with only T5 and no MH.

It is hard to gauge the growth when some people have better water qualitys than others. How do you know it is the lighting? I'm just saying you would almost have to have two tanks connected to each other with one having MH and T5. And the other with led. Then grow the same size corals for the same amount of time to find out which lighting is better.
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8429

Zoafreak wrote:
jb61264 wrote:
I haven't researched into this yet but I'm also going to be interested to see the spectral output of the LEDs that people are using now...I think the term "PAR" is used pretty loosely at this point as more important than actual PAR is the PUR (photosynthetically useable radiation) put out by lights. Bandwidths between 400-550nm and 620-700nm are those that are absorbed by the photopigments in zooxanthellae to stimulate photosynthesis. LEDs could be putting out significant light between 580-600nm which would boost PAR but would be pretty useless as far as coral growth is concerned. It just seems to me like people are using 50/50 ratios of white/blue LEDs because they "look" good versus what is really good for the corals and this is where I think more work needs to be done before I'll be making the switch.

I like the idea of not using so much energy on lights but till some real proof comes out i will stick with the 216w T5 and 500w MH light i'm running on my 75 gallon. I also have a 75gal with 324w T5 that has corals growing well. These have already been proven in the hobby so i'm not telling you anything you didn't already know. I also am running 432w T5 on my 40gal breeder tank i'm using for a frag tank and everything is growing fast. I have no tanks with led's so maybe when they are proven to be better light i will jump on the wagon... Yee ha!! I would love for my electric bill to go down $$$ and thats not going to happen with MH and T5 even though the T5's use less than MH. That is why for my second 75gal i went with only T5 and no MH.

It is hard to gauge the growth when some people have better water qualitys than others. How do you know it is the lighting? I'm just saying you would almost have to have two tanks connected to each other with one having MH and T5. And the other with led. Then grow the same size corals for the same amount of time to find out which lighting is better.

Amen! There is nothing in the way we report findings that is scientific. It is all anecdotal and based on obervation with little or ususlly no controls. Even if I get twice the growth rate using my LEDs than a controlled tank using MH, I cannot say I achieved proper, healthy skeletal structures unless I do the studies. I went with LED for cost savings, and reduced maintenance. The corals will do alright. Will they thrive? I hope, and we'll see, but then if that were my only concern, I would have left them in the oean. ;)
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Re: Coral's Reef Lighting Survey 1 year 9 months ago #8430

IME, the 8 months I've had LEDs, the growth and color has been superior. I have had the same corals under both LEDs, and 800w of radiums. The equipment in my 120 was far superior than the equipment in my biocube. I had a reeflo orca vs my tunze 9002, and 2 mp40's vs my mp10. I also ran a calcium reactor on the 120, and an RDSB. I dripped kalk once or twice in my biocube, and have no rdsb for nitrate removal. A good example of good coral growth would be my German Blue Digi. It grew out of nowhere, and is a pretty good size now, and very blue. Under my radiums, it barely grew, and was more of a German brown. The distance form the light was about equal since I had the Digi's on a frag rack. My green ricordias arent even visible in the 1st picture, and look how much theyve multiplied. I have had those since my 1st tank in 2006. They split maybe once. Now I can count upwards of 20+ mouths. Same with that frilly mushroom in the back left. It split about 4 times since December. At what year mark would people say LED's successfully grow coral? They are a little pricey, but well worth it IME. I love how much the save on electricity, and how well my corals respond to them. Who knows, if its the LEDs, but I don't really do much different in my husbandry.

Here is a picture of my coral when I first put it in under LEDs from the 800w of radium. Notice there isn't a blue digi on the upper right hand side of the tank.


Here is the tank after being under LEDs for about 7 months. Look at that Digi grow! haha



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