do fish sleep?

Answer 1

Most all fish spend time in an energy-saving state that can be called
"rest", and we might even call their behavior "sleep", though it is probably
different than "sleep" in most land
animals. Many fish, like Bass and perch, rest on or under logs at
night. Coral reef fish active in the day, hide and rest in crevices
and cracks in the reef to avoid being eaten at night.
The resting behavior of fish is very different from their behavior the
rest of the day. Many minnows, for example, which are very active in
schools during the day, scatter and remain motionless in shallow
water at night. Many fish "rest" or "sleep" during the day and are
active at night instead, but almost all fish sleep.

Answer 2

I have a catfish tank, these fish can't close their eyes like we do when we sleep (I don't know if there are fish which can do that) - but my corydoras spend time resting on the gravel. They lie close together sometimes all 11 of them lie almost on top of each other. They will stay this way for minutes up to a few hours at a time.

Answer 3

Most all fish spend time in an energy-saving state that can be called
"rest", and we might even call their behavior "sleep", though it is probably
different than "sleep" in most land
animals. Many fish, like Bass and perch, rest on or under logs at
night. Coral reef fish active in the day, hide and rest in crevices
and cracks in the reef to avoid being eaten at night.
The resting behavior of fish is very different from their behavior the
rest of the day. Many minnows, for example, which are very active in
schools during the day, scatter and remain motionless in shallow
water at night. Many fish "rest" or "sleep" during the day and are
active at night instead, but almost all fish sleep.

Answer 4

You should have a saltwater fishtank. I wish you could see how my clownfish goes to her cave every night at 7 when the lights go off along with the other fish in their respective caves. She swings with the rhythm of the water and then falls asleep. Then in the morning they wake up for breakfast, yawn, tap the glass, and beg for food, every day. They also make grunting noises if you leave the lights on a long time, (aka night studying) and if the lights are not on in the morning, they dont come out or eat either.

Answer 5

fish do sleep, but they sleep when the sun goes down or the tank light is off and wake up when the sun comes up or when the tank light is turn back on. but you shouldn't leave the tank light on all the because not only does it harm the fish but the light causes algae to grow.

Answer 6

Fish lay on the bottom of the tank or in an accesory in the tank for rest. Since fish have no eyelids, it appears that they are awake.

Answer 7

If I remember correctly, they do sleep but not like we do. Its not like they sleep for 8 hours. I think they take mini naps throughout the entire day. Like a few minutes here and there.

Answer 8

They are not actually sleeping but are in a restive state.It is a time during the day light hours they'll spend their time in an energy saving state.We might think of it as sleep.

Answer 9

they do when they get yanked out of the sea by a fishing rod

Answer 10

Yes, but only for a few seconds at a time and they don't close there eyes.