Newbie question on lighting

my plans are to only have "easy" Soft corals in my 75 gl. this is my first Saltwater tank so plan to just get my feet wet. I have a 48" T5 Light Fixture with the ability to hold 2 - Bulbs.

it is my understanding that these Soft "beginner Type" Corals require much less intense lighting than a full blown Reef system does.



My question - will this Fixture be enough and which 2 bulbs would be the best to have??

thanks