I had bought a bbt anemone and the secound day i had it it went in between two rocks, but the amount of light it wasent getting in there it was out with in two days. I do watter changes all the time and all my levels are always pretty good. It might not stay in there,they move around until they find there place. I agree with meowzer though lighting, water quality and how long your tank has been established is all very important. And if i remember anemones like a lot of flow. correct me if im wrong, i know my two anemones are both in areas where there is more flow then othere. I also read that helps dispose there waste. anyways sorry for the babbling.