Mixing LED Colours on custom fixture

[Seth81]

I agree, no need for all of the channels of light you have mentioned. From my personal experience I would only do:

Cool White
Royal Blue
UV
True violet

If you wanted to keep it simple then just the Cool white and Royal blue.

Originally Posted by Ron99

I've been experimenting with LEDs for many years and if I were building a fixture now I would simply use warm white, royal blue, violet and green. There's really no need for the regular blue in addition to royal blue and red LEDs add little either. But green is useful as it can stimulate some of the red pigments in corals etc.

I have a fixture I built many years ago. At the time I just used cool white and royal blue with 90 degree optics. When i put it back to use over my 120 gallon tank I added in some violet, red and green emitters without any optics just to add colour. It's working really well but I've found i basically have the reds almost turned off. I don't find them useful at all.

[Ron99]

Originally Posted by Seth81

I agree, no need for all of the channels of light you have mentioned. From my personal experience I would only do:

Cool White
Royal Blue
UV
True violet

If you wanted to keep it simple then just the Cool white and Royal blue.

I would definitely add some green. Have you ever shined a plain green LED on corals? It makes the red colours pop.

[Seth81]

Sorry I meant Cyan. Yes I had Cyan and it did bring out more reds.

Originally Posted by Ron99

I would definitely add some green. Have you ever shined a plain green LED on corals? It makes the red colours pop.