fish

the little goldfish swayed its tail and lived freely in the aquarium. The tail of the fish is transparent and fan-shaped, with thin black lines on it. The role of the fish tail is like a rudder, which controls the swimming direction of the little goldfish. Small goldfish have fins on their bodies. The fins on the back are like a semicircular black comb, swinging with the tail. They have scales all over their bodies, and the dark scales glitter in the sunlight. The scales are the same color as the abdomen, so it is difficult to see. The head of the little goldfish looks like a triangle. When its head tilts, its swimming direction changes. The little goldfish's mouth is flat, open and close, and it can spit bubbles! Little goldfish also has a pair of big round eyes. Black eyes and body are the same color, it is difficult to distinguish.