T5's enough for nem?

Are you looking at a fixture or are you going to be building your own with retros?

That tank is only 12" wide so the absolute maximum number of bulbs you could fit would be 4 with room for reflectors.

IMO you will be fine with 2 x 54w 48" T5 bulbs so long as they have quality reflectors that increase and direct the output into the tank.
 
With that 4 bulb TEK fixture you would be able to keep anything that you could keep under MH, even on the bottom of the tank.
 
Sorry, I wouldn't go with only 2 tubes... 4 minimum. I have my bubble tip under 6x24's, and it's loving it!!! Getting huge.
 
Actually, BTAs require a lot less light than most people think.
Not only have I been keeping BTAs under PC lighting, but according to Anthony Calfo, some successful anemone farmers are growing them under normal output fluorescent lights.
 
i had one that was under my PC's for awhile but im not to sure on how it would have done. only had it about a month then came home and found it in a powerhead :/ but while i had it it looked to be doing fine.
 
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