JFox stressed blue lights, but why is AB+ so white?

[Doctorgori]

I don't believe that spectrum plays that big of a role in coral growth or coloration. I think corals can flourish under a wide range of light spectrum. More importantly, I think the key to stable and fast growth is to not constantly fiddle around with spectrum. Set it to a visually appealing spectrum and leave it there.

Adam from Battlecorals as a great post on this: https://www.reef2reef.com/threads/psa-on-the-lamentation-of-the-ocd-leder.323356/.
[/QUOTE]
Dang, you can actually see the tip growth.
Yup, and going further I think a lot of us hobbyist abuse & confuse lighting terms. I know I got a lot to learn still....
Anyway, If blue light is the cure to algae woes, GFO & snake oil sales would be zilch.
Daylight tones grow corals also. I’m about to do a frag build: one side blue, the other “yellow”, my guess is there will be no real measurable difference, but we’ll see

 

[Bpb]

People are too often misrepresenting what white light is, as evidenced here in this thread. You can have one light source of only wavelengths from 400-500nm (or all blue/violet) and you can have a 6500k sunlight equivalent source with the same amount of blue in it. White light isn’t the antithesis of blue light. White light IS blue light with other wavelengths combined. A well configured white light can have more blue present than a poorly designed blue only light. It’s being over simplified here.

 

[Yakashka]

Trade for a g5 blue. It’s very blue on Ab+

 

[lumpadelic]

I’m running my G5 30’s on the same parameters as you except my cool white is at 25% and my point intensity is at 70%. That gives me a PAR of 450 at the top and 250-300 towards the sand bed, with 3 units over a 90 gallon. Everyone seems to love it.

 

[GrapevineReefs]

accidental post?