The tigerfish, also known as the brown calamari and the stone ninja, belongs to the genus Calamari of the family Calamariidae of the order Strigiformes. The following is a detailed description of the tigerfish:

1. Morphological characteristics

The body is prolonged and laterally compressed with eyes protruding from the dorsal margin of the head.

The anterior gill cover bone and the posterior margin of the gill cover bone have spines, the thorax and abdomen are covered with round scales, and the rest of the body is covered with pectinate scales.

Body color varies with the environment, usually brown or maroon, with a light-colored abdomen.

There are several conspicuous black or dark brown transverse lines above the lateral line, and inconspicuous transverse lines below the lateral line.

Each fin is brown or reddish brown with scattered spots and patches.

2. Distribution

It is distributed in the western Pacific Ocean, including the Yellow Sea, East China Sea and South China Sea.

3. Habits

It mainly lives in the rocky reef area, preferring to inhabit the clear water area with rapid tidal currents, the voids of submarine caves, coral reefs, pebble and sandy gravel fields, and seaweed zones.

Carnivorous, mainly to small fish, shrimp for food, a small amount of food straw worms, mud snails, algae and so on.

Sexually mature at 1 year of age, internal fertilization, egg viviparity, reproduction from October to May, varying with the region in which they live.

4. Nutritional value

Tigerfish is sweet and nutritious, rich in protein, vitamins, minerals, unsaturated fatty acids, amino acids and other nutrients.

It is known as "false grouper" and is a popular seafood.

5. Species and variations

Tigerheads are mostly red in color and are called red tigerheads. In addition, there are varieties such as red and white flower tiger head, red head tiger head, jade top tiger head, five flower tiger head, silver tiger head, yellow tiger head and so on.

Among them, the red-eyed yellow tiger head is the most rare, silver-white body, head and tail fin beige, like lemon, by a circle of bright red color film around the ink eyes embedded within the beige sarcoma.

Variant varieties include tiger head ball and dragon eye tiger head.

6. Breeding Precautions

Tigerheads need sufficient light to grow and develop, keep 8-10 hours of light every day.

Tigerhead prefers an environment with water flow, you can use a water pump or filter to enhance the water flow.

Tigerheads are suitable to live in waters with a water temperature of 27-30 degrees Celsius, and the pH should be controlled between 7-8.

Keep the water clean by testing it regularly and avoid direct sunlight.

In conclusion, tigerfish is a widely distributed and nutritious marine fish with unique living habits and species variation. When breeding, you need to pay attention to water quality, light, water temperature and other conditions to ensure the healthy growth of tigerfish.