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Unread 04/17/2018, 09:22 AM   #2
Tripod1404
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Join Date: Mar 2016
Posts: 1,821
Do green-colored corals need green light?

Quote:
Originally Posted by RioReefr View Post
I had originally set my AI LED lights with minimal "green" light...no more than 5% because I had read the green wavelength is just used by algae.

However after doing more reading, I have now upped the greens to 15% (peaking at 20%) and I swear I see more coloration in the green corals....green-star polyps, green hammer, green mushrooms, kryptonite trumpet, etc. all look noticeably better.


No. They are green because they reflect green. If they used green it would be absorbed and they would not be green. Photosynthesis do not use green light at any significant level, that is why plants appear green as well. It just gets reflected while other wavelengths are being absorbed.

When you increase green, they reflect it more that’s why they appear more green to you. Also human eye is very sensitive to green, so even small changes are noticeable.


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