ID a coral <3

[darkreef]

open brain? i love this coral. ever since i started feeding it its grew another mouth and 3 times as big...

he has soft flesh but if you pick him up he shrinks down to a bone ridge. sends feeder tentacles out at night. or when i feed the tank. the picture doesnt do justice this coral pops .

i want another so looking for a ID, its on its own small rock will it need a bigger rock to keep growing? or will it just grow its own skeleton