Well, what i did with my old community tank is run a 7600k light (Basic Plant light) with an Actinic 03 light, gave the plants all they needed and the actinic brightened up the fish.
For colors, i think reef tanks... Actinic light = vibrant color. we like 20k MH bulbs for amazing color (once its burned in)
Def going to be pairing up a plant light with an Actinic for my 40g breeder.
Oh, also... idk wtf it is, my LFS gets a LOT of japanese stuff in, they have these pink lights... i was surprised, they actually look really, really damn good. Makes the water look crystal clear, but on the bright "White" side, like you're using 10k lights, but it doesnt white wash the colors like 10k.