I hope you can successfuly keep it for a long time. I had yet to see anyone keep that anemone in their tank over 5 months. I had 1 before and lost it after 4 months, it looks great and everything but suddenly one day just melted. I had no clude what happen. but please don't get discourage, I hope to see you get it done.
And since I just got my vendor status, I think I can link my site now. May be you can check out my site at www.aq-led.com
for some LED
that might work for your set up.
EDIT: Please to over feed it, keep it about once a week is more than enough. It should get 80% of its food source from lighting.