what size tank do you have? i have a very powerful 48" t-5 fixture but the trouble is, it's 48" x 24". this will have to be a 120 you are lighting.
btw, it already has high end lamps in it and the fixture and lamps are only 3 months old. i still have the original packaging, so it should be an easy ship.
this is an 8 x 54 watt individually reflected fixture.