So I have live rock in my aquarium and I'd like to have decent coralline algae growth, however, I'm not planning on adding coral (at least for no). My fish tank just has a normal 24 inch fluorescent tube. What sort of lighting would you suggest?
that 24" fixture you have is fine. you could change the lamp to something with a better color temp, suitable to grow algae, like something in the 6500k or higher range, but what you have is fine. remember, coralline, like any other algae, must be introduced. if you don't have any present right now, you'll never have any, no matter what lighting you use.