We brought home our first anemone about two weeks ago, a Long Tenticle. He appeared healthy but white in color. I placed him on the bottom of the tank against a live rock, where he anchored himself and has remained ever since.
After not showing any interest in food, I force fed him a krill, which he tolerated. The past three days, I have given him a small piece of fresh, uncooked shrimp which he gobbles right up! He seems to be very happy right after eating and is getting some color to him as well.
Good Luck with yours! It's beautiful!