LED lighting UV is a must

Why do you have to specifically block UV when using double ended halides then? ***coming from some one running just neutral whites and royal blues...with non brown coral***

 

LOL wondered that too

 

It doesn't even look like it will stop in this thread.

 

Lol true Ultraviolet light is sub 400nm light waves. These are dangerous so MH producers sometime put a coating on the glass to fliter these uv rays. Some states, notably California, have also banned the sale of these led's due to human health concerns.

Its true in the ocean that shallow water SPS and other corals produce a natural 'sunblock' protein to protect the biological tissue from damage, but this substance is clear and translucent, not contributing to color.

That being said, 400-430 is considered violet light, and as you can see from SCIENCE, sunlight and most MH have a notable spike in this spectrum. This, from my own novice research over the past couple years, increases the chance of red corals staying red (some people observe red turning more orange or pink under AI sol and DIY lights using only blue and white emitters), and purple corals fading more towards brown (however this doesn't make a ton of sense to me i always thought if a coral was purple it absorbs everything but the purple wavelengths)

 

Oh, now you must see the problem with this statement.... UV=405-420? :

;D

 

Actually that is incorrect. Your leds are royal blue. Ultra violet or UV (same thing) is below 400nm and is off the visual spectrum. Uv is most likely bad for corals.

True violet or violet leds are 420nm. But 400 to 420 is what most led companies call "uv" leds

True uv LEDs are super expensive and basically unavailable

 

Here's a chart showing the spectrums...

 

Excellent Chart, about time someone brought that out. UV is inherently bad to all living organisms as it damages DNA.

I'm also 95% certain that the first post was meant as a troll post, so....

 

Gentlemen don't get me wrong I have a A whole bunch in my system, I was shocked when this gentleman told me that you need UV and when he explained to me about the corals in Australia because that's where he's from he told me that they need UV and if you think about it I believe he's somewhat right I know for a fact that these corals use of sunscreen to protect their tissues against the UV light from the sun. I would love for some expert to come on this forum and set us straight because I would hate to take out my LEDs I got a bunch of them. Phil

 

And you know guys I'm so glad I brought this up about LED and UV lighting on this form, because look what it did. It brought out a lot of information that would not have been discussed. this is great because this is what the forms about talking to people and getting information. I hope I didn't upset anybody I'm just trying to pass one some information that was told to me. But it's great that everybody responded thanks a lot guys.Phil