if i am going to use a metal halide will i need to get some vho to enhance the color of coral or will the bulb itself be enough?

vinh, i want to use a quad smartlamp because i have a dual ballast but i dont think that it will fit in the hood of the tank so i figured i would just leave the hood off and have a pendant hanging above it, i am desparately trying to look for a way that i can make the quad lamp work since i paid the extra cash to get a dual but i just dont know how to make it work. suggestion???