Lets talk about ~Lighting~

[NaH2O]

Sometimes I say things before I actually think about what I'm saying or saying what I'm not thinking, I think!

LOL - sounds like me!

 

[Scooterman]

Nooo Not the DSB again, I though we left that behind two forums ago LOL!
I'm looking at your typical glass tank around 240 to 300g, not sure what exactly will fit into the wall. I will try and keep the dept around 30 inches. I would like to keep an air gap that would help in cooling but not exceed the Lighting installed. I'm guessing the tank will be around 5 or 6 feel long, maybe installing three 250w MH DE 10k, or 15k XM, I would then supplement with 4 to 8 T5's splitting them on either side of the MH. I plan on using the 100g I have now for the sump, the 30g for something also. Not sure if big is the way to go, maybe I would use the 100g for a sps only tank, & use the new in wall set-up for the type of mixed set-up I have now? In that case the 100g is 5ft long and 19" deep, so I was thinking two DE's would do the trick, adding T5's for supplementation.

 

[juke]

Wow, that is a lot of great info to swallow. There has been alot of talk about MH lamps and there color ranges, but I currently run actinic PC's. I am rather new to the hobby, so I am not going to kill a bunch of SPS in my tank!!! But I am planning on staring with polyps, zo's, leathers, ricordia, shrooms, etc. I have a 50g with 2x 96w PC's - 1 03 blue and 1 10k. I have room in my hood to supplement this lighting, but want to avoid MH until I have more experience and more $ . What would you supplement this system with? 67k blub? 13w red? How much of a difference would it make?

 

[juke]

in addition... What about the use of moonlights? There are a lot of DIY moonlights that employ a variety of LED configurations. Some appear to lean towards the LED's that are closest to the correct light spectrum produced by the moon. Others seem to use them merely to see there nocturnal species. Any thoughts?

 

[Scooterman]

Thoughts, humm LOL I'm leaning towards T5 lighting for several reasons, in my first choice of florescent lights as supplementing MH.
I've been reading on & off about T5 for the past year, in Europe they seem to be bigger but slowly trickling in here. From what I know, they need a good reflector they are said to run cooler than any other PC, & fall in PAR somewhere between the PC & VHO lamps. If you look at PC vrs VHO, the PC produces a tight pattern of higher intensity light as the VHO is a broader pattern not quite so intense. They also claim the last longer the its counterparts.
Now moon lighting, LED's are awesome, IMO, anything that produces as close to natural environment in most cases is a good thing. I can't much more about moon lighting.

 

[Scooterman]

http://www.duplexelectrical.com/duplextimesnew/Philips Brings Fluorescent.html

 

[Montanarocknreefer]

Well I have decided to go with the Ushio's 10,000k MH's and 2-VHO actinics since my PC 96's are to long for the canopy that will go over my new tank. After reading all this and seeing the difference K's and how they affect corals it always brings me back to the 10,000k bulb so that is where I will stay!

 

[Scooterman]

10k all the way!

 

[bradreef]

bump this thread. great reading if looking into bulbs.

 

[bradreef]

Ok so for something in the low end of the spectrum 350-425. It looks like the Xm is better then the Ushio. Not saying it is a better bulb but is stronger at the lower end

ushio

http://www.advancedaquarist.com/issues/aug2004/review18.htm


XM 10k

http://www.advancedaquarist.com/issues/aug2004/review17.htm

now to replace the 20k I was looking at 14k bulbs and It seems that they have the same spike at 450 as your 20k radium

radium

http://www.advancedaquarist.com/issues/aug2004/review12.htm

EVc 14k

http://www.advancedaquarist.com/issues/feb2005/feature4.htm

 

[bradreef]

so lets say you run a combo of the 14k and a 10k xm. You get good strenght at 350-425, a good spike at450, good strength at 550 with the xm, and a spike at 600 with the 14k. overall good coverage.

 

[Scooterman]

http://www.cnidarianreef.com/lamps.cfm

Check these out brad, look at PAR & then color for your desires, just something to look at. I think the PAR numbers may be off but they still can be used as a reference, Boomer posted something of the actual PAR a while back.

 

[kimoyo]

Mike, what do you do for a living man? :lol: When you started talking about electron-hole pairs I was like oh man. This is a great thread, just a few questions.

The concept of the flash is that in take an ammount of light at a certain intencity to excite the excitons once done the transfer to reaction center pigments by inductive resonance.

Are you talking about the corals pigments now? Can you say a little more about how the inductive resonance works?

Unlike land based plants corals do not continue to need input via thier symbiount algae (remember thier a guest). So a flash of light will begin the process, but thier is a limit the coral will want of what the algae gives. If the light is intence the zoox will be performing at thier peek efficiency. But the coral has the light switch (retracting polyps and so on) to slow or stop the rate. So from a purely energy budjet stand point you could get the process started with a flash and then just supply normal average light intencity for the balance of the time for the CORAL to get all it needs from the photosynthitic process. does that make sence??

Are you saying that once the zoox is excited it in turn excites the corals pigments thru inductive resonance and then the coral fufills its energy requirements thru its polyps or some other means?

Thanks.

 

[kimoyo]

Short wavelengths at High frequencys will not travel or penetrate water as lower frequencies & longer wavelengths. I wasn't clear on that part.

I know there was a little confusion on this before, so just to clarify its the other way around. Shorter wavelengths/higher frequencies (bluer light) have more energtic photons then higher wavelengths/shorter frequencies, which is why blue light goes deeper in the ocean.

Also on a similar note, the reason 20k bulbs have less par than 10k bulbs is because their photons require more energy. So if you are feeding both bulbs from 250W ballasts then the 20K bulb will have less photons per time.

 

[Scooterman]

I know there was a little confusion on this before, so just to clarify its the other way around. Shorter wavelengths/higher frequencies (bluer light) have more energtic photons then higher wavelengths/shorter frequencies, which is why blue light goes deeper in the ocean.

yep I had it crossed sorry

http://www.ems.psu.edu/Courses/earth002/03012D.gif

http://www.equiworld.net/uk/horsecare/alternativetherapies/lighttherapy/spectrum.JPG

 

[kimoyo]

Actually I'll have to look it up but I think it is short wavelengths/high frequencies are in the red spectrum of light, if you have that information please post it, thanks.

Nah, its the other way around. Here's a link to wikipedia,

http://en.wikipedia.org/wiki/Light_spectrum

Theres a color-coded chart on the bottom right.

 

[kimoyo]

yep I had it crossed sorry

http://www.ems.psu.edu/Courses/earth002/03012D.gif

http://www.equiworld.net/uk/horsecare/alternativetherapies/lighttherapy/spectrum.JPG

Cool links.

 

[kimoyo]

Now for coloring :
>Pocilloporin primarily absorbs green/yellow (550-600 nm) light along with some upper UV-A . it emmits a orange/red
>highly fluorescent pocilloporins primarily absorbs light from 310 to 380 nm (UV-B and UV-A) and then fluoresces this as light from 400 to 470 nm (violet/blue).
>highly fluorescent pocilloporin primarily absorbs light from 380 to 470 nm (UV-A, violet and blue) and fluoresces light from 475 to 520 nm (blue and green).
>third type of highly fluorescent pocilloporin primarily absorbs light from 430 to 490 nm (violet and blue) and fluoresces light from 490 to 540 nm (green/yellow).
>Yellow fluorescing pocilloporin primarily absorbs light from 440 to 500 nm (blue) and fluoresces light from 520 to 620 nm (green, yellow and orange).
>Red/Orange Fluorescing pocilloporin that primarily absorbs light from 500 to 540 nm (green) and fluoresces light with wavelengths that are primarily orange to red.

Hey Mie - Where is this quote from? Thanks.

 

[mojoreef]

Mike, what do you do for a living man

Saturation expert at the Lucky Lady strip club

Are you talking about the corals pigments now?

Yes the pigments with in the zoox

Can you say a little more about how the inductive resonance works?

Oh man, lol let me answer your next question first, maybe it will help.

Are you saying that once the zoox is excited it in turn excites the corals pigments thru inductive resonance and then the coral fufills its energy requirements thru its polyps or some other means?

In the process of Photosynthesis the photon energy absorbed by the zoox is used for photochemical conversion. Excess is burned off as heat or reremitted as fluorescence. So in a way the energy being absorbed can be used to reremit. Once this energy is converted to sugars such as glycerol,fructose and simular during long exposure. Also malic and aspartic acids. Basically carbon sources, So in the wild these corals get around 98% of their carbon budjet directly from carbon produced through photosythesis. Did I answer that one??

Hey Mie - Where is this quote from? Thanks

Thats kind of a compulation from several studies, mainly by the U of Australia.


Mike

 

[kimoyo]

Saturation expert at the Lucky Lady strip club

LOL

Yes the pigments with in the zoox

But in your earlier posts you said pigments were in both the zoox and coral. Is that whole process of transfering energy to reaction center pigments by inductive resonance within the zoox and not the coral?

I'm still not understanding is this

Unlike land based plants corals do not continue to need input via thier symbiount algae (remember thier a guest). So a flash of light will begin the process, but thier is a limit the coral will want of what the algae gives.

Whats is the coral doing vs. the zoox after this extended flash of light? Is it same process that happens during the flash?

Does the coral itself (not zoox) get any benefit from or use of direct exposure to light or does it just flouresce?

Thanks.