Coral under only blue and purple LEDs?

[neoh]

I run mine with about 5% whites with positive results. I find I get better results the least amount of white I add. As far as I know and understand, whites are majorly just for aesthetic purposes.

Here's a good article on light spectrum in the reef tank:

http://www.advancedaquarist.com/2012/10/aafeature

[matt_C]

heres a little reading
http://www.biolbull.org/content/135/1/149.full.pdf

[Wretch]

Thanks for all the feed back. Working on a new light.