New desktop tank

I picked up this IM 15 gallon for my desk. My plans are black sand and Marco rocks, And have it as a softy lps tank with 2 clowns and a watchman. What light should I go with and anything I should add to it.

I picked up this IM 15 gallon for my desk. My plans are black sand and Marco rocks, And have it as a softy lps tank with 2 clowns and a watchman. What light should I go with and anything I should add to it.