Green MH light

[Young Frankenstein]

I can get a green MH light bulb, do you think it would grow algae and chaeto better than a 6.5k bulb?

[Young Frankenstein]

I did some research and red light might be the light to get maximum macro algae growth
http://gateway.nlm.nih.gov/MeetingAbstracts/ma?f=102222770.html

[Bradly88]

chloroplasts(the organelles in photosynthetic organisms that require light for photosynthesis) absorb rays of red and blue light! so i would either go with a red or blue MH!

[Dante_JoseCuerv]

So would something like this work for the OP?

http://www.plantlightinghydroponics.com/ushio-24w-24-inch-3000k-t5-ho-fluorescent-lamp-2pack-p-1011.html

[bristle]

The reason most plants appear green is because they reflect the green spectrum of visible light away. Giving them green light will not be very good for growth.