BTAs can do quite well under flourescent lighting, provided it's sufficient wattage and the tank isn't too deep. A store near me has an anemone tank that's been running for almost ten years using VHO flourescents, but as a general rule provide as much light as you possibly can and make sure you replace the bulbs often.
I set up a small clown/anemone tank for a friend and it's been doing great for over a year now. I'd recommend using tall rock with plenty of crevices and make sure none of it touches the walls of the tank to reduce the chances of the nem wandering into the overflow (which WILL happen). Put the anemone in first and give it a couple weeks to find a spot it likes before introducing the clowns. Also be careful about mixing small anemones with clownfish. They can get pretty rough with the nems and small ones can sometimes not withstand the beating. Look for one that's at least a few inches across when open, and introduce young clowns in the 1 - 2" range only.