There is no such thing as an "EXTREMELY hardy anenome." These critters need near ideal water conditions, the correct circulation, filtration, lighting, temperature, and tank-mates to survive over the long term. If you aren't sure how to feed them, I am going to guess you don't know what other mineral supplements they need either. I recomend you start with a book instead. This forum has great info but it is not organized in logical order like a book is. <a href="http://www.amazon.com/exec/obidos/ASIN/0966454952/ref=pd_cp_nsr_b_3/104-7860220-2520744" target="_blank">Host Sea Anenome Secrets</a> is a great place to start and is only $8.99 on-line. It's just 36 pages, but it will answer all your basic questions.
Good luck
P.S. I have kept a Seabae and Perc Clown for over a year and it has trippled in size, so it can be done.