I tried the same thing with trying the tank raised to host. Have tried pictures have tried btas then moved the anemones to another tank. THen tried the LTA and they have not touched it either. The thing about tank raised is that they were never really been taught to use them as they would in the wild. If you ever go scuba or snorkeling you wont see a clownfish without an anemone. I hope you can get yours to host but mine just stay hosting their little piece of live rock. lol Let me know if you know if any other tips.

On another note my rbta moved around alot less than my lta. Maybe I just got lucky with my BTA as it never really moved from where it was placed.