Of course, the black dragon fish can grow up to 60 cm, so the breeding environment of the black dragon fish is very important.

The aquarium length of Arowana should exceed 120 cm. At the same time, ultraviolet sterilization should be installed to prevent the occurrence of diseases. Moreover, the aquarium must be equipped with an air pump, which can not only increase the dissolved oxygen in the water, but also drive out the excessively high concentration of carbon dioxide in the water. In order to prevent the arowana from jumping to the surface when frightened, the aquarium must also be covered.