Anybody know how to get a rbta to release itself from a rock? The rock its attached to is about 15, 20 pounds and the anemone is right around 18". So heavy rock and a big nem are the issue. Any tricks? Ive changed the flow to minimal going to it, changed how much light its been gettin, and just all around annoying it and it wont move so i can start massaging it off the rock.