There are two common types of sharks (tropical fish), one is the blue shark, also known as the tiger shark, and the other is the silvershark, the following is the information of the two types of sharks:

Blue Shark: also known as the axolotl shark, tiger shark, belongs to the family of catfish.?

Origin: Thailand, Malaysia

Body length: 8~15?CM?,? Wild fish up to 50CM Tigerhead Shark

gentle, mixed bait, large food, extremely rapid growth, this fish often make the water dirty, affecting the ornamental effect.

Distribution range: distributed in the world's tropical and temperate zones.

Living environment: living in the water surface to 200 meters deep sea.

Growth and reproduction: oviparous. Can give birth to 20 to 50 young sharks.

Identification of male and female blue sharks is difficult, and blue sharks have a hard time reproducing in aquariums. They can only be recognized by the slightly swollen abdomen of the female during reproduction, but are otherwise difficult to distinguish. Males have a more pointed dorsal fin, wider pectoral fins, longer anal and caudal fins, and a thinner body, while females have a fuller body.

Name:

Silver shark;

Latin name: Balantiocheilus?melanopterus;

Alias: blackfin pouched-lip fish;

Classification: Eukaryota? Chordata? Subphylum Vertebrata? Scleractinia? Subclass Spoke-finned Fishes? Cypriniformes? Cyprinidae;

Origin: Thailand, Sumatra and Kalimantan, Indonesia;

Length: 30cm-40cm (adult);

Body shape: streamlined sub-fusiform body; scales shiny silvery-white, whitish on the belly; all fins pointed at the end of the body, dorsal, ventral and anal fins triangular, caudal fin y forked, dorsal and caudal fins larger and more pointed. triangular, caudal fin y forked, dorsal and caudal fins are larger and sharper; each fin is yellow with black edges, the inside of the black edges is a broad band of light gray; eyes are large; it is not easy to differentiate between male and female (generally speaking, males have flat abdomens, while females have slightly curved abdomens);

Habits: it likes to swim in clusters, it is gentle, and it has the habit of clearing away bait, and is sensitive to fright and easily scared. This fish is sensitive and easily startled, good at jumping;

Eating habits: omnivorous;

Silver Shark(5)

Lifespan: more than 6 years;

Reproduction: oviparous;

Activity area: mesopelagic;

Feeding pH: 5.8?-?7.9;

Feeding hardness (? dGH?): 4.0?-?12.0;

Silver Shark (5)

Feeding hardness (4): 4.0?-?12.0;?

Feeding temperature: 22.0?-?28.0? degrees Celsius;