So Tuesday I purchased two anemones. One long tentacle and another I forgot the name. The later is doing well and thriving but my long tentacle is making me nervous. My wife sent me these photos tonight and the other day where it constantly looks like this. One of the days I noticed some goo around it. I pulled out the anemone and it did not have “dead” smell so I placed it back in on top of some rock and it seemed to thrive that day. Only this morning it moved back to its original spot on the bottom of the tank and now looking like this again. It’s not burrowing in the sand neither. Any suggestions?