This is one of the pickiest coco worms I have ever have. Normally, I don't have an issue placing a coco worm anywhere, as long as it feels some water flow. However, this particular one won’t come out unless it is placed in a strong current area. I am running out of suitable spots to hide it and its long tube, so I placed it right in the middle of a cluster of BTAs.
I learned something new today: apparently, a coco worm can touch an anemone without any problems.