The seven-star saury can grow up to about 80 centimeters in general, and about 1 meter in the wild. Generally speaking, the size of the aquarium that people keep is between 1 meter and 1.5 meters. After the polyculture of different kinds of ornamental fish, the space for the seven-star saury is limited.

And the fish tank limits the growth of the seven-star saury to a certain extent, which is also a lot The reason why seven star saury raised in aquariums is difficult to reach wild size.