Switching from MH to T5?

[MikeP]

The tank is 24 in wide. I've thought about adding a third pendent in the middle. It would be nice to get rid of those super hot ballasts in my stand rather than add another one though. Maybe I should save up and buy a MH T5 combo unit. I'm due to buy new bulbs for my current set up and I need a new capacitor for one of the ballasts so I figured if I was going to make the change now is the time.