Lighting Spectrum

Mules1 · 02/20/2013, 10:31 AM

Currently I have 20 cree xp-e 455 nm blue and 20 cree xp-g 8,000 - 10,000 k LEDS (80 degree optics) over my 65 gallon 36"l x 18"w x 24"d. I'm going to add another string of LEDS. Was thinking of 10 violet 420 nm and 10 cyan 505 nm alternating over the 36" with no optics.

My questions are (for the led and lighting gurus that know about coral color/growth and spectrum):

1) Is this enough/too much of each?
2) Should I add some LEDS higher in the spectrum like greens (530 nm) or reds (670 nm) - or are those just for esthetics and not growth?

02/20/2013, 10:31 AM	#1
Mules1 Registered Member Join Date: Feb 2012 Posts: 381	Lighting Spectrum Currently I have 20 cree xp-e 455 nm blue and 20 cree xp-g 8,000 - 10,000 k LEDS (80 degree optics) over my 65 gallon 36"l x 18"w x 24"d. I'm going to add another string of LEDS. Was thinking of 10 violet 420 nm and 10 cyan 505 nm alternating over the 36" with no optics. My questions are (for the led and lighting gurus that know about coral color/growth and spectrum): 1) Is this enough/too much of each? 2) Should I add some LEDS higher in the spectrum like greens (530 nm) or reds (670 nm) - or are those just for esthetics and not growth?