I dont think I would recommend that anyone can keep anemone's under NO FL lights, while it may be possible with proper feeding it would be stressful on the anemone and sharply decrease the success rate, which isnt very good to begin with. On the other hand 260 watts PC would be adequate for most anemone's. I woulsd suggest you weigh your options a little longer before you buy that PC fixture. I would suggest you look into T-5 lights instead. They'll be alot cheaper in the long run, bulbs last 4 times as long, lower energy consumption, and the ability to keep more light demanding inverts.