The first coral I bought from Salt Water Paradise many years ago was a trachyphylia radiata, then called welsophypia. I brought it home and saw tentacles. Brought it back in a bucket with a portable air bubbler, sure it would die . Joe looked at me like I was insane. He kindly assured me it would be fine as it was a barnacle. I was dubious but came to like watching the barnacle for many years and realized how much there is to learn in this hobby.