I have a 46G Bowfront tank with a canopy. My 192W CF fixture just died and I'm now willing to spend as much as I need. I'm looking for the strongest fixture that I can use brackets on my open tank and canopy. This means fixtures that have the fans on the side instead of the back may overheat. I wish I could get the Nova Extreme or Orbit Pro, but they aren't recommended for uncovered tanks or canopies. Thanks!