Is the landlord a person who cares about Feng Shui very much? In general, raising arowana must start with hobbies. As long as you like it, there is no absolute possibility. As for how much, it depends on the size of your fish tank. If it is a small tank, it must be less. If it is a big vat, you can raise more. In addition, if you have no experience in raising arowana, it is generally not recommended to raise more than two, so the loss will be more serious. Arowana polyculture not only tests money, but also tests people's ability to resist blows. The struggle of polyculture of arowana is very serious. In addition, what color to raise is nothing more than dragons, silver dragons, golden dragons and red dragons, which still depends on your own preferences and your financial resources. However, it is not recommended to mix different arowana houses, and the fight is more serious!