Originally Posted by Trusty_one
The violet? Ultra violet? Anything under 400nm is ultraviolet I like 400 it is also the same wavelength as moonlight I guess. Ultraviolet I don't believe to have too much to do with growth but I do like the glow it gives the tank. I think t5 aticnic are 480nm I think I am way off there Idk. I used a 470nm led
on my test light I am building. I am sure there was a reason but I don't remember right now.
Violet is not UV
.. Look here is the Violet verses UV
- I already have two and they are for coral color or in theory... UV
creates a "sun burn" like to the coralsd giving them more colors...
But now I'm looking at it again.. I thing I need higher 400's which is the cyan & pinkleds.. I think I read somewhere sps
coral need 410-510 wave length but could be wrong.