Southern snakehead, also known as white-edged snakehead. The head is large, extremely wide and flat, its width is greater than the width of the body, the body is scaled, the head scales are large and irregular, the fins are brightly colored, and the male is even more dazzling. It is mainly distributed in Yunnan, Guangxi, Guangdong and Taiwan Provinces. Dorsal fin 34-37; fin 24-25; pectoral fin 16; ventral fin 6. Lateral line scales 45, 3/7. The body is rod-shaped, the scales on the head are larger than on the trunk, the nostrils have a duct membrane, and there are small gray spots on the scales of the whole body. The spots on each fin are scattered. The most peculiar ones are the white edges on the edges of the fins, especially on the caudal fins.
The tiger skin duckbill, Pseudoplatystoma fasciatum (Linnaeus, 1766), is a species of fish in the family Catfish in the order Catfish in the order Catfish. About 25cm to 100cm long, the body is elegant and streamlined, there are more than a dozen horizontal stripes on the body, the head is slightly flattened, the snout is large and flat like a round shovel, eat everything, and is a standard large diner. It is native to the Amazon basin of South America.
The scales above the lateral line are parallel to the lateral line in front of the back and diagonally only in the rear; the scales below the lateral line are arranged in parallel with the body axis. The head scales begin above the posterior edge of the eye. The posterior margin of the anterior gill cap has a wide and shallow notch. The plough bone and the hired bone have a thin tooth band, and the tongue also has fine teeth. Appearance characteristics.
Neoglyphidodon Oxyodon (Bleeker 1858) is a reef fish of the genus Neoglyphidodon (Bleeker 1858) in the family Snapperidae, mainly distributed in tropical coral reefs, lagoons and in-bay reef rocks between Indonesia and Australia, with a length of up to 10 cm.
The side of the body is flattened and slightly elongated, and the body color changes greatly with growth and sex. It is characterized by an orange-red color throughout the body , an oval black spot in the center of the dorsal fin , sometimes a darker head , and a ring of dark bands around the eyes. The caudal fin is rounded. It lives in the sea of 2 to 20 meters, prefers to inhabit the dark side of the reef rock or reef cave, and is one of the few fish species in this family that swims out of the cave. Timid but fierce and voracious, carnivorous, mainly small fish and small crustaceans. Sexually transformed, territorial, males have egg-guarding behavior during the breeding period.
Also known as the flower eel (scientific name: Anguilla marmorata, English name: Marbled eel [1]) belongs to the eel family. It is one of the larger eels, generally 331 to 615 mm in length, weighing about 250 grams, but the heaviest can reach more than 30 kg. The body is thick, the body before the ventral fin is cylindrical, the posterior part is slightly flattened, and the overall body is elongated and rod-shaped, much like a huge eel, so it is commonly known as the "eel king".
Eastern Star Spot, Plectropomus leopardus (Lacepède, 1802), a species of fish in the genus Gillis in the family Edophoridae. The East Star Spot is brightly colored and is very suitable for breeding tanks for ferocious fish. Grouper is a fierce predator and will swallow any fish it can swallow. It also eats ornamental shrimp and other crustaceans. Unlike cannonball fish, groupers swallow their prey in its entirety instead of biting. It will not harass fish that they cannot swallow, and can be polycultured with other species of grouper, but will fight with other star spots. Food includes a variety of marine fish, squid, shellfish and shrimp. It is necessary to provide some live food frequently, and enough nutrition will maintain its color.
Ding tuna, also known as European ding tuna, Ding Gui fish, whisker fish age, Western legend that diseased fish can be cured by body friction, thus getting the alias of doctor fish. It is a freshwater and soda fish distributed in Eurasia (from the British Isles in the west, to the Ob and Yenisei rivers in the east, and to Lake Baikal in the south), and is the only species in the genus Ding Ting. It usually lives in slow-flowing freshwater, especially in lakes and lower reaches of rivers.
Peacock medaka (Poecilia reticulata), commonly known as peacock fish, also known as anchovies, rainbow medaka, rainbow medaka, gubi fish, etc., is a tropical fish of the medaka family, male and female fish body size and color difference is larger, adult males are thin, body length of 3-4 cm, body color colorful, beautiful body; adult females body length of about 5 cm, its tail stalk and tail fin account for more than 1/3 of the body, each fin is shorter than the male fish. It is much inferior to that of males.
The yellow-purple snapper belongs to the order Perciformes of the order Teleostidae, the yellow-purple snapper is slender, with a long and low dorsal fin and fin, each with only 3 fin spines, the rest are soft fins, the tail fin is small, close to fan-shaped, swimming ability is not strong. The yellow-purple snapper is a small fish with a maximum body length of 7 cm.