at night. Goldfish usually rest for 3-5 hours at night. They sleep for a short time, but sleep more times. Sometimes they sleep for only a few minutes, but normally they can sleep for 20-30 minutes at a time. After they wake up, they will move for a period of time. Then they go back to sleep, and at the end of the day, they can sleep about 10 times. How long goldfish can sleep depends on the surrounding environment. They like quiet and dark environment when they sleep. If the lights are turned on at night or the surrounding environment is noisy, their rest time will be reduced and they may be frightened.
? Goldfish have no eyelids, so we can't judge whether they sleep or not by their eyes. But we can judge by their behavior and state. Goldfish will choose a suitable place before sleeping. They will choose a quiet, dimly lit and hidden place. After choosing a good place to sleep, they will stop moving, slow down breathing, and become numb. Although they do not move when they are asleep, their fins still swing slightly to keep the fish balanced. And when goldfish sleep, their color becomes lighter.
