I have a 4 bulb 5t light with only one reflector when I changed the bulbs to API I noticed a big difference in growth. I have a 55 I have been looking for a light with individual reflectors. I have one special blue, two white and a purple, it took awhile for the purple to burn in but once it did it made the colors pop.
This is my tank Joys 55 saltwater tank part 1 - YouTube
will be going into another tank when I get rid of my lemonpeel. If my anemone starts having problems I have a backup single MH
to use or put it in another tank.