1, according to today's headline information, the subject classification is different: Paddy snakeheads, alias sand snakeheads, Tu Cai Fish, Tu Bean Ba, belongs to the class of Scleractinia, Perch, gobies, gobies suborder, sand snakeheads; sand snakeheads, alias goby, belongs to the class of Scleractinia, Perch, gobies, gobies, gobies suborder, gobies family.

2, habits are different: the tiger likes to live in the river and lake near the shore of more water plants, rubble, rock crevices, mud and sand bottom. Swimming power is weak, to shrimp, small fish as the main food; sand snakeheads inhabited in the near-shore intertidal zone, the substrate for the sediment or rocky shallow sea area, coral reefs and seagrass pastures, mainly feeding on shrimp, crabs and other crustaceans, small fish, clams larvae, and some ingested benthic diatoms.