I hope this is not a superfluous post or what you thought it was going to be. Like a lot of people with bubble tip anemones (BTA) I have wanted them to stay in a specific region for various reasons from ascetics to not om noming my corals on walkabout. I started doing this method about 6 years ago and since then have not had one move with the exception on splits. In the past I have even been able to basically keep them in the sand. The method I have been using is to drill a hole in the rock I want them on, and gluing a "cross bar" this rock across the bottom. I have kept splits on premade rocks like this also until they had time to heal at which point I would give them away along with the rock. Since I have had questions about how long it takes BTAs to acclimate and how to prevent movement, I figured I would document it this time. I started with a cured (~30 days) piece of live rock and drilled a 2" hole through it. Of course I cured it wrong side up so despite my best planning, I am gonna be stuck with a white rock for a while. Because I like Hard Mode, I placed the rock directly in front of a powerhead at the bottom of the tank. I started with a BTA not from my tank so this was not acclimated to the tank conditions. So far after two weeks there has been no observable movement of its foot. Generally I like to wait three to four months before I consider a BTA happily settled so I will update this thread periodically. Obviously for this to work your tank needs to meet the basic requirements to keep a BTA. Hopefully this helps someone, if not... NO REFUNDS!