Yes it does, not forgetting solite fixture at least have a fan running to keep the bulbs cooled, for aquazonic, you are expecting a 6 month bulb change, any longer your spectrum its going to shift and you might experience coral color lost and algae problem. for solite fixture, you can probably go up to 9 months before requiring a bulb change. for ATI fixture probably a year or so.
as for individual reflector, i would say a 6 tube aquazonic = 4 tube solite, maybe an 8 tube aquazonic = 4 tube ATI (ati having better reflectors). that means you would need more tubes/fixture for aquazonic as compared to those having individual reflector to have the same PAR levels. calculating the electricity cost & bulb change cost, best to skip aquazonic.