T5 color combo?

[Slyguy00]

So after reading about t5 and different bulbs and colour combos I'm more confused now then ever. Iv always had led and just switched to T5 (for now) so I know nothing about them. It seems everybody runs different colour combos and setups. How do you know what is best for coral growth and coloration? Is it all personal preference? There are so many different types, brands, and spectrums to choose from I don't know where to start. Any advice would be helpful. Thanks in advance.