The two-syringe likes to eat seaweed, and it reproduces by laying eggs in groups. Slings live in waters between 1-20 meters deep in lagoons and sea-facing reef areas, occasionally in smaller shoals, and mostly in coral reef areas of the Indian Ocean.

The body of the two-character hanging fish is milky yellow on the whole, with no lines on the side of the body, and there are two short black lines behind the eyes Belt, caudal fin is yellow-green with many dark lines. intotwo-character hangingThe body of the fish is oval and flat. The head is small, and the outline of the back of the head protrudes as it grows. The mouth is small, end position, with a row of flat teeth in the upper and lower jaws, the teeth are fixed and immovable, and the tooth margins are notched. The spines of the dorsal and anal fins are sharp, and the rays are not elongated. The pectoral fins are nearly triangular, and the caudal fins are crescent-shaped. As they grow, the upper and lower lobes gradually lengthen. The adult fish is uniformly milky yellow, without any lines on the side of the body, but with two short black horizontal bands just behind the eyes, the spots are shorter than the length of the head and narrower than the diameter of the eyes. Dorsal fin blue-white with pale blue margin, dorsal fin base with a gray to black line, anal fin dark brown with light blue margin, anal fin base with brown line, caudal fin yellow-green, with several dark lines, fins The margin has a broad pink-blue band, the front half of the pelvic fin is the same color as the body, the rear half is black-brown, with a blue margin, the pectoral fin is black-brown and transparent, the caudal peduncle spine is pink-blue, and the caudal spine is black-brown.