First of all....what is you size tank?Lighting?dimensions?Other inhabitants?How long has it been set up?
I understand that anemones need about 5-6 wpg to be healthy.....and they also need a established tank.It will need to be fed bbs portions and also some commercial product for anemone growth while also for a food source.
I have been doing some light reading on anemones so when i try to set up my mini reef (this will probably never happen) i could add an anemone.