Shrimp farmers in the Can Gio region have recently faced a troubling issue: an unidentified worm species is proliferating in their farming ponds, causing a significant decline in shrimp productivity. This worm, despite its high population density, has remained unclassified, falling within the broad genus of Ficopomatus but without a specific species designation. Within the diverse family of polychaete worms, known as Serpulidae, and belonging to the Sabellida group, the Ficopomatus genus is of particular interest. Serpulidae worms are distinguished by their calcareous tubes, leading to their evocative nickname, "flowers of the sea". These organisms are further defined by their unique radiolar crowns and bipartite body division into thoracic and abdominal regions [1,2]. The Ficopomatus genus, a member of the subfamily Ficopomatinae,