Reds, Pro's-brings out colors and can be good for corals in low intensities.
Cons- can fuel algae and hurt corals if to much or to high.
Greens- Pros-99% for visual appeal and should only be used to get the "look" you want.
Cons- can fuel algae growth
This is only my opinion from things I've read and on my Radions I keep my reds about 20-30% and greens are only on a few hours a day on very low. 15-20% at most.