According to the Hanano Nature Network, the blue shark is a large fish, and if it is farmed artificially, it usually grows to about 30-40 cm, and the individual weight usually does not exceed 650 g. It needs more space to grow, and only if there is enough space to survive, it can grow bigger.

The tropical fish blue shark, also known as the axehead shark, tiger shark, belongs to the catfish order. Originally from Thailand, Malaysia, the body length of about 8 ~ 15CM, wild fish up to 50CM, mild temperament, miscellaneous food bait, food, extremely rapid growth, this fish often make the water turbid, affecting the ornamental effect.