I voted "no" but ... it's more of a "not completely". I will be running T5's in addition to halides. I hope for the best of both worlds this way.
I actually would consider going all T5 but at 30" depth I think I'll be happier with a combo.
I'll tell you one thing, I don't think that the costs of T5's are really that much less than halides, once you consider that by the time you add up all the watts and the replacement lamps, they're only marginally cheaper. However have you looked at the costs of T5's versus PC's? Wow, if nothing else, T5's will totally take over PC's in the marketplace, no question. That's my prediction anyhow
