Generally, arowanas are kept singly. If they are kept together, because arowanas are more expensive, they usually choose less aggressive fish, such as smaller parrot fish, not too many, and silver version. , scavengers, dinosaurs, etc. Now there are people who talk about raising Thai tigers and arowanas together. They say they won't fight. But I tried raising them with Xingdian but it didn't work. The tiger's small size should be fine. Silver dragons are kind-hearted, and there won't be much friction between the same species, so you can keep several at the same time. It can also be crowned with three crowns, gods, flying winds, maps, oriental swords, etc. Because arowana is an upper-level fish, it must be properly matched with the middle-level fish so that it looks good