I bought a couple trochus snails a week ago and one has this fuzzy black claw looking thing on its shell. Anyone know what it is or if it is a concern to the tank?
https://youtube.com/shorts/Ik97A5UoXuo?si=PGIdhW8lqxEK_dVY
https://youtube.com/shorts/Ik97A5UoXuo?si=PGIdhW8lqxEK_dVY