Introduction to the magical aquarium: If my fish tank contains colorful tropical fish, deep-sea fish, and subtropical fish, when you catch them with your hands, they will stop immediately. After you let go of your hand, they will be scared and run away. When they feel that there is no more danger around them, they will swim around leisurely again. Do you believe it? There is such a magical aquarium in the Haier Science and Technology Museum. In the future family, the Magic Aquarium can satisfy your hobbies. Not only can you enjoy three different fishes at the same time, but you don't need to change the water or feed the fish.