blue or white LED lights for refuge

[alfani]

i had finished modifying my CPR Bak Pak to add 3gal of space for cheato. I am currently using 2 white LEDs on for 24/7. I am working on adding more LEDs, would it be better if I use blue LED instead of white ones

 

[scarf_ace1981]

since it's for the fuge i would add more white. no need for blue as they are used to bring out the color in corals

 

[Psycho graphic]

Would adding a couple of red ones help as most plants use more of the red spectrum?

 

[Chiefmcfuz]

White light is fine to keep photosynthesis going nice and strong.

 

[DonCisco]

ok, here is a bit of science now, your best bet is to have some red and some blue color led's, at the 440nm and 670nm spectrums of light. Those two color coincide with the peak absorption of chlorophyll I and II, you will see more growth and better survival of your cheato there than with just white light.
The better absorption, the more energy used, the more phosphates and nitrates being used by your macro algea.

 

[ming]

Those better be some powerful LEDs... otherwise 2 LEDs wont cut it

 

[DonCisco]

well, I am not saying to put 2 leds, lol I said... use a combination of those 2 led colors for maximum chlorophyll absorption.

 

[PalmTree]

Thats a pretty good idea. I'd be real curious as to the results.