Do Goldfish Need to Sleep?
Goldfish Don't Naturally Sleep at Night, Like People Do. .. . If You Keep a Light on in the Tank, You Can Train Fish to Sleep at Night, When You Sleep, and...
Goldfish don't naturally sleep at night, like people do. ... If you keep a light on in the tank, you can train fish to sleep at night, when you sleep, and stay awake during the day. If you turn on and off the light at the same time every day, goldfish will typically follow the same sleep pattern.
How do I know if my goldfish is sleeping?
It's pretty easy to tell when fish are sleeping: they lie motionless, often at the bottom or near the surface of the water. They are slow to respond to things going on around them, or may not respond at all (see some sleeping catfish here).
What happens if goldfish don't sleep?
When your goldfish don't get enough sleep, their metabolisms can slow down and they lose their normally ravenous appetites. Their immune system starts to struggle, and your goldfish may develop bacterial or fungal infections. Ensuring your goldfish get plenty of rest is important to maintaining a healthy tank of fish!