i am assuming thats what this is, my daughter found it on the beach , not in the surf or in the water, on the sand . I see these all the time and assume they are dead, dried out in the sun, however she placed it in a bucket with water and later in the day i looked at it and saw polyps . I "fragged" it the best i could, it was to large to go in whole, and attached it to rock in my tank.I have no experience with these and i would never purchase one due to there complexity. Does it look like its going to survive?