i think that anemones are jsut needy pets, requiring the same amount of attention as a dog. weird comparison. They are very fragile creatures, and can many times suffer from shipping and handling resultign in a weak individual. anemones need to be fed in captivity. they can live off the translocated product of their zooxanthellae, but this is not the case inthe wild. in the wild, the majority of the anemones find food by catchign it, or with the aid of a clownfish, to brign food to it. In a home aquarium, they need lots of food, and lots of light as they will still be required to use their zooxanthellae for energy. i have kept BTA's for years now, and have even had two individuals split, resulting in 4 anemones. i feed them every other day with a variety of meaty foods, and do the best i can to ensure that they are happy. granted BTA's are one of the more hardy anemone species, but i am pleased that i can witness first hand the anemone and clownfish relationship in my tank, and that they are all doing so well! i think we as aquarists need to provide optimal conditions for their survival, and for all other tank inhabitants to be truthful, as an anemone will perish if neglected.
sorry to ramble
good luck
jon