well if you can afford it id go with halide. but if your like me and cant really afford halide then i would go with a nice vho setup or a nice power compact setup.. i just got the coralife aqualight 4-65watt power compact setup for my tank(the rents wont let me have it till xmas though :nope: ) its got 2 7100k ble antics and 2 10,000k white bulbs, 260 watts total.. i dont know how well it would over a 75, but from what i hear you can keep alot of the easier coft corals under it.. hth