lighting question

[jpond83]

can you just use actinics in an all coral tank? if not do i use 10k or 67k?

[jrsatx20]

67k is real yellow everyone use 10k

[gjuarez]

You cant use only actinics, corals need some of the yellow and red spectrum to grow (5.5k to 10k). Actinic is great for color though. Make sure actinics are true actinics, 420nm and not 460nm.

[texmex]

I have some marine-glow actinics do you know what the nm is on those?