What is the best variety and ranking of arowana?

Arowana is a red subspecies of the beautiful bony fish tongue fish, which is subdivided into four colors, of which blood red is the most beautiful and precious, and the number is very small. Due to the influence of loong culture, arowana has become the embodiment of auspiciousness, which means auspiciousness is transported into treasure, so it is called Feng Shui fish.

In terms of body shape, it is mostly a round blunt shell, which is mainly caused by the growth environment. The hunting behavior of blood red dragon is mainly speed chasing, so it needs a more streamlined body shape, and its staple food is small fish and shrimp.