The tiger fish is poisonous.

The tigerfish is a fish of the genus Ghostfish of the family Poisonous Trevally, which is distributed in the coastal waters south of the central part of Honshu in North Korea and Japan as well as in the North China Sea of Guangxi, belonging to the offshore demersal fish. Body color varies with depth, inshore shallow water is dark brown; in the deep water offshore is red or yellow. The body length can reach 200 millimeters.

Early summer spawning. Ghost trevally eggs floating sex. Because of the fin spines with expanded sac-like venomous gland tissue, toxicity, stung by a severe paroxysm of pain, sometimes lasts several days, so there are "sea scorpion", "tiger fish" and other names.

Expanded information;

There are many species of tigerfish, and the appearance of different species of tigerfish is also very different. Our tiger fish in China are mainly the three species of Günther's ghost trevally, two-fingered ghost trevally, and ghost trevally, all of which have relatively strong toxicity. These fish are also found in shallow waters, so if you're going to the beach and you see one, you'd better run away.

There are many species of tiger fish, and their appearance varies greatly from species to species. In China, there are mainly three kinds of tiger fish, namely, the Gushi Ghostfish, the Double-fingered Ghostfish and the Ghostfish, all of which have relatively strong toxicity. These fish are also found in shallow waters, so if you're going to play on the beach and you see one, it's best to run away.

Source: Baidu Encyclopedia - Tigerfish