at night? Goldfish are not afraid of the dark at night. They are evolved and improved from wild crucian carp. In the wild, they adjust their work and rest time according to the natural environment. At night, there are no lights in the wild, and they will not be afraid. Therefore, as long as the family does not suddenly turn on and off the lights, It won't scare them. Many breeders will turn on the fish tank lights at dusk, and it is not recommended to turn on the goldfish lights at night if it is not to enhance the ornamental value. Because goldfish have to rest at night, turning on the lights will affect their rest and waste resources. If you want to turn on the lights to add color to them, you can choose to turn them on during the day.
at night? Goldfish sleep at night. They have a similar schedule to humans. They both sleep at sunset. But they don't have eyelids, and they don't sleep with their eyes closed like other animals. But if the breeders look carefully, they can still see their sleeping state. When goldfish sleep, they will choose a place with dim light and quiet environment, and then stay here to reduce activity, slow down breathing, and become more numb. When they sleep, their fins swing slightly to maintain their balance. Goldfish do not sleep for a long time, sometimes they will sleep for 1-2 hours continuously, and sometimes they will wake up in a few minutes.
