These things move when i touch them. They can be removed easily as they come out in chunks. I scraped the frag and dipped it in CoralRx for 10 min.
I dont know if the dip was usefull. To my understanding dips work on crustaceans/worms and other parasites but these things seem more related to ¿¿¿¿¿zoas/palys/hydroids/ aptasia/jellyfish??????
The ones i left in the dip seem to be dead.